Page 1 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager 7.0 Americas Headquarters Cisco Systems, Inc. 170 West Tasman Drive San Jose, CA 95134-1706 http://www.cisco.com Tel: 408 526-4000 800 553-NETS (6387) Fax: 408 527-0883 Text Part Number: OL-15985-01...
Page 2 The Java logo is a trademark or registered trademark of Sun Microsystems, Inc. in the U.S. or other countries. The Bluetooth word mark and logo are registered trademarks owned by Bluetooth SIG, Inc., and any use of such marks by Cisco Systems, Inc., is under license.
Page 3: Table Of Contents
Understanding WLAN Standards and Technologies 802.11 Standards for WLAN Communications Radio Frequency Ranges Wireless Modulation Technologies AP, Channel, and Domain Relationships WLANs and Roaming Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 4 Using the USB Cable to Charge the Phone 3-11 Installing and Using the Desktop Charger 3-13 Using the Desktop Charger to Charge the Phone 3-14 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 5 Installing Authentication Certificates for EAP-TLS Authentication 4-19 Configuring PEAP 4-24 Configuring IP Network Settings 4-25 Enabling DHCP 4-25 Disabling DHCP 4-26 Configuring the Alternate TFTP Server 4-26 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 6 Changing the Cisco Discovery Protocol Settings Erasing the Configuration Configuring Wireless Settings for the Network Profile Accessing the WLAN Configuration Menu Changing WLAN Configuration Settings Changing Phone Settings 5-10 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 7 Managing the User Options Web Pages 7-20 Giving Users Access to the User Options Web Pages 7-20 Specifying Options that Appear on the User Options Web Pages 7-21 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 8 Creating a New Configuration File 10-7 Resolving Voice Quality and Roaming Problems 10-7 Symptom: Cisco Unified Wireless IP Phone Resets Unexpectedly 10-8 Verifying Access Point Settings 10-8 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 viii OL-15985-01...
Page 9 Supporting International Users A P P E N D I X Installing the Cisco Unified Communications Manager Locale Installer Support for International Call Logging Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 10 Configuring the Cisco Unified Wireless IP Phone 7921G in Cisco Unified Communications Manager Installing the Cisco Unified Wireless IP Phone 7921G N D E X Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 11: Preface
Network engineers, system administrators, or telecom engineers should review this guide to learn the steps required to properly set up the Cisco Unified Wireless IP Phone 7921G on the wireless network. The tasks described are considered to be administration-level tasks and are not intended for end-users of the phones.
Page 12: Related Documentaton
These publications are available at the following URL: http://www.cisco.com/en/US/products/hw/phones/ps379/tsd_products_support_series_home.html Cisco Unified Wireless IP Phone 7921G Phone Guide • Cisco Unified Wireless IP Phone 7921G Accessory Guide • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 13: Obtaining Documentation And Submitting A Service Request
Obtaining Documentation and Submitting a Service Request For information on obtaining documentation, submitting a service request, and gathering additional information, see the monthly What’s New in Cisco Product Documentation, which also lists all new and revised Cisco technical documentation, at: http://www.cisco.com/en/US/docs/general/whatsnew/whatsnew.html...
Page 14: Document Conventions
Means danger. You are in a situation that could cause bodily injury. Before you work on any Warning equipment, be aware of the hazards involved with electrical circuitry and be familiar with standard practices for preventing accidents. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 15: Understanding The Cisco Unified Wireless Ip Phone 7921G
G711b, G.711u, G.729, G729a, G729b, and G729ab. The phone also supports uncompressed wideband (16 bits, 16 kHz) audio. The wireless IP phone supports multiple lines and most of the IP phone features of other Cisco Unified IP Phones. Figure 1-1 shows the Cisco Unified Wireless IP Phone 7921G.
Page 16: C H A P T E R 1 Overview Of The Cisco Unified Wireless Ip Phone 7921G
Speaker button Toggles the speaker mode on or off for the phone. Right softkey Activates the Options menu for access to the list of softkeys. Sometimes displays button a softkey label. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 17 Activates the softkey option displayed on the screen. When customized by the button phone administrator or user, allows direct access to the Phone Book or voice messages. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 18 “Setting Up Services” section on page 7-17. For more information about phone features and how they operate, refer to the Cisco Unified Wireless IP Phone 7921G Phone Guide and Quick Reference for Cisco Unified Communications Manager 4.3, 5.1, 6.0 and Later and Cisco Unified IP Phone Features A - Z on this index: http://www.cisco.com/en/US/products/hw/phones/ps379/products_user_guide_list.html.
Page 19: Feature Overview
Manager and the rest of the IP network using the wireless LAN. There are two methods for configuring network settings such as DHCP, TFTP, and for wireless settings for the phone. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 20: Providing Users With Feature Information
Providing Users with Feature Information If you are a system administrator, you are the primary source of information for Cisco Unified Wireless IP Phone users in your network or company. To ensure that you distribute the most current feature and procedural information, familiarize yourself with Cisco Unified Wireless IP Phone 7921G documentation.
Page 21: Understanding Security Features For Cisco Unified Ip Phones
Understanding Security Features for Cisco Unified IP Phones Implementing security in the Cisco Unified Communications Manager system prevents identity theft and prevents data, call signaling, and media stream tampering. To reduce or eliminate threats, the Cisco IP telephony network establishes and maintains authenticated and encrypted communication streams...
Page 22: Understanding Security Features For Cisco Unified Ip Phones
Most security features are available only if a certificate trust list (CTL) is installed on the phone. For Note more information about the CTL, refer to “Configuring the Cisco CTL Client” chapter in the Cisco Unified Communications Manager Security Guide.
Page 23 See the “Understanding Security Profiles” section on page 1-10 for more information. Encrypted configuration files Lets you ensure the privacy of phone configuration files. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 24: Understanding Security Profiles
Administration. For information about configuring the security profile and applying the profile to the phone, refer to Cisco Unified Communications Manager Security Guide. Security is configured on each Cisco Unified IP Phone. For more information about configuring security, Note refer to Cisco Unified CallManager Security Guide at http://www.cisco.com/en/US/products/sw/voicesw/ps556/prod_maintenance_guides_list.html.
Page 25: Understanding Security Profiles
IP telephony service. For information and a checklist for setting up and configuring a complete Cisco IP telephony network, refer to the “System Configuration Overview” chapter in the Cisco Unified Communications Manager System Guide.
Page 26: Overview Of Configuring And Installing The Cisco Unified Wireless Ip Phone 7921G
Prior to using the phone to connect to the wireless LAN, you need to configure a network profile for the phone. You can use the Cisco Unified Wireless IP Phone 7921G web pages to set up the network profile and other phone settings, or you can configure the network profile using phone menus.
Page 27: Manager
Manager, page 1-12 Installing the Cisco Unified Wireless IP Phone 7921G, page D-7 • • Troubleshooting the Cisco Unified Wireless IP Phone 7921G, page 10-1 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 1-13 OL-15985-01...
Page 28 Chapter 1 Overview of the Cisco Unified Wireless IP Phone 7921G Overview of Configuring and Installing the Cisco Unified Wireless IP Phone 7921G Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 1-14 OL-15985-01...
Page 29: Understanding The Wireless Lan
APs (APs) and key Cisco IP telephony components, including Cisco Unified Communications Manager, to provide wireless voice communication. In a traditional LAN, IP phones and computers use cables to transmit messages and data packets. Cisco Unified WLAN delivers security, scalability, reliability, ease of deployment, and management similar to wired LANs.
Page 30: Chapter 2 Overview Of The Voip Wireles Network
Cisco IOS software provides features for managing voice traffic. In some WLANs, each AP has a wired connection to an Ethernet switch, such as a Cisco Catalyst 3750, that is configured on a LAN. The switch provides access to gateways and the Cisco Unified Communications Manager server to support wireless IP telephony.
Page 31: Understanding Wlan Standards And Technologies
2.4 GHz—Does not require licensing. To reduce interference within this bandwidth, WLANs transmit on non-overlapping channels, which are typically limited to three channels, although Japan uses four channels. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 32: Wireless Modulation Technologies
DSSS technology multiplexes chunks of data over several frequencies so that multiple devices can communicate without interference. Each device has a special code that identifies its data packets and all others are ignored. Cisco wireless 802.11b/g products use DSSS technology to support multiple devices on the WLAN.
Page 33 • Overview: Cisco Unified Wireless Network at http://www.cisco.com/en/US/solutions/ns175/ networking_solutions_products_genericcontent0900aecd80529a5f.html. For more information about APs, see the “VoIP WLAN Configuration” section on page 2-18. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 34: Wlans And Roaming
Layer 3 Roaming—With the release of the Cisco Catalyst 6500 Series Wireless LAN Services Module (WiSM), the Cisco Unified Wireless IP Phone 7921G now supports Layer 3 roaming for autonomous mode APs. For details about the Cisco WLSM, refer to the product documentation available at: http://www.cisco.com/en/US/products/ps6526/tsd_products_support_model_home.html...
Page 35: Components Of The Voip Wireless Network
Cisco Unified IP Phones support several networking protocols for voice communication. Table 2-3 describes the networking protocols that the Cisco Unified Wireless IP Phone 7921G supports. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 36 Cisco Unified IP Phones use SCCP communicate between IP devices and protocol for VoIP call signaling and Cisco Unified Communications enhanced features such as Message Manager. Waiting Indication (MWI). Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 37: Interacting With Cisco Unified Wireless Aps
A post installation survey will verify that the AP coverage is still adequate for optimal voice communications. See the “Site Survey Verification” section on page 2-20 more information. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 38: Associating To An Ap
Components of the VoIP Wireless Network Associating to an AP At startup, the Cisco Unified Wireless IP Phone 7921G scans for APs with Service Set Identifiers (SSIDs) and encryption types that it recognizes. The phone builds and maintains a list of eligible APs and uses the following variables to determine the best AP.
Page 39 With CAC, QoS is maintained in a network overload scenario by ensuring that the number of active voice calls does not exceed the configured limits on the AP. The Cisco Unified Wireless IP Phone 7921G can integrate layer 2 TSpec admission control with layer 3 Cisco Unified Communications Manager admission control (RSVP).
Page 40: Interacting With Cisco Unified Communications Manager
Implementing QoS in the connected Ethernet switch is highly desirable to maintain good voice quality. The COS and DSCP values that the Cisco Unified Wireless IP Phone 7921G sets do not need to be modified. To configure QoS correctly on the AP, see the...
Page 41: Interacting With The Dhcp Server
DHCP allocates IP addresses dynamically and reuses IP addresses when devices no longer need them. If DHCP is enabled in the network, the Cisco Unified Wireless IP Phone 7921G uses the DHCP scope settings in the DHCP server to perform the phone provisioning bootup process. You must configure the settings of the DHCP server in the Cisco Unified Communications Manager network.
Page 42: Security For Voice Communications In Wlans
WLANs. To ensure that voice traffic is not manipulated or intercepted by intruders, the Cisco Unified Wireless IP Phone 7921G and Cisco Aironet APs are supported in the Cisco SAFE Security architecture. For more information about security in networks, refer to http://www.cisco.com/en/US/netsol/ns744/networking_solutions_program_home.html.
Page 43 RADIUS server. Note In the Cisco ACS, by default, the PAC expires in one week. If the phone has an expired PAC, authentication with the RADIUS server takes longer while the phone gets a new PAC. To avoid the PAC provisioning delays, set the PAC expiration period to 90 days or longer on the ACS or RADIUS server.
Page 44: Authenticated Key Management
Encryption Methods To ensure that voice traffic is secure, the Cisco Unified Wireless IP Phone 7921G supports WEP, TKIP, and Advanced Encryption Standards (AES) for encryption. When using these mechanisms for encryption, both the signaling Skinny Client Control Protocol (SCCP) packets and voice Real-Time Transport Protocol (RTP) packets are encrypted between the AP and the wireless IP phone.
Page 45 • If AKM and 802.1x are used, the authentication method is LEAP. • The Cisco Unified Wireless IP Phone 7921G uses network EAP for 802.1x. Open EAP is also available. Table 2-6 provides a list of authentication and encryption schemes configured on the Cisco Aironet APs supported by the Cisco Unified Wireless IP Phone 7921G.
Page 46: Voip Wlan Configuration
This section provides configuration guidelines for deploying wireless IP phones in the WLAN and includes these topics: • Wireless Network Requirements for VoIP, page 2-19 • Interacting with Cisco Unified Wireless APs, page 2-9 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 2-18 OL-15985-01...
Page 47: Wireless Network Requirements For Voip
This section identifies key AP configuration options that are required for optimal voice performance. This is not a complete list of configuration steps or options for deploying APs such as the Cisco Aironet APs. For more information about configuring your AP, refer to the appropriate...
Page 48: Configuration Tip For Cisco Aironet Aps
AP to another with no audio problems. After the initial deployment, it is a good practice to perform site surveys at regular intervals to ensure continued coverage and roaming. From the Cisco Unified Wireless IP Phone 7921G, you can use the Neighbor List utility or Site Survey utility from the Settings > Status menu.
Page 49: Neighbor List Utility
To verify the ability to roam between APs, walk through all areas where phones are used and take Step 5 readings. Approach areas from different directions to assure successful roaming conditions. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 2-21 OL-15985-01...
Page 50: Site Survey Utility
Viewing the Site Survey Report on the Web, page 4-41. In addition to the Site Survey utility in the Cisco Unified Wireless IP Phone 7921G, you can also use the Cisco Aironet Client Utility Site Survey Utility from a laptop PC. Refer to the section on “Performing a Site Survey”...
Page 51: Before You Begin
Methods for Adding Phones to Cisco Unified Communications Manager, page 3-2 • Safety Information, page 3-5 Network Requirements For the Cisco Unified Wireless IP Phone 7921G to successfully operate as a Cisco Unified IP Phone endpoint, your network must support these requirements: Voice over Wireless LAN •...
Page 52: C H A P T E R 3 Setting Up The Cisco Unified Wireless Ip Phone 7921G
Adding Phones with Auto-Registration and TAPS, page 3-3 • • Adding Phones with BAT, page 3-4 Adding Phones with Cisco Unified Communications Manager Administration, page 3-4 • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 53: Adding Phones With Auto-Registration
Use auto-registration and TAPS to add phones to the Cisco Unified Communications Manager database. Add the phones first by using BAT to the Cisco Unified Communications Manager database with dummy MAC addresses. Then use TAPS to update MAC addresses and download pre-defined configurations for the phones.
Page 54: Adding Phones With Bat
“Installing or Removing the Phone phone. Battery” section on page 3-8 BAT is included in Cisco Unified Communications Manager 5.0 or later, but it is a plug-in for prior Note releases. For detailed instructions about using BAT, refer to the following documents: For Cisco Unified Communications Manager Release 5.0 and prior releases, refer to Bulk...
Page 55: Safety Information
Adding Phones with BAT, page 3-4 • Safety Information Review the following warnings before installing the Cisco Unified IP Phone. To see translations of these warnings, refer to the Regulatory Compliance and Safety Information for the Cisco Unified Wireless IP Phone 7921G and Peripheral Devices document that accompanied this device.
Page 56: Battery Safety Notices
Battery Safety Notices The following battery safety notices apply to the batteries that are approved by the Cisco Unified Wireless IP Phone 7921G manufacturer. There is the danger of explosion if the battery is replaced incorrectly. Replace the battery only with Warning the same or equivalent type recommended by the manufacturer.
Page 57: Installing The Cisco Unified Wireless Ip Phone 7921G
Caution Cisco part numbers. Standard battery—CP-BATT-7921G-STD Extended battery—CP-BATT-7921G-EXT Use only the Cisco power supply that is compatible with your phone. To order your power supply, contact Caution your local dealer and refer to the list of Cisco part numbers. Australia—CP-PWR-7921G-AU...
Page 58: Installing Or Removing The Phone Battery
To install the battery, insert the battery catches (as shown in Figure 3-1) in the corresponding slots at the bottom of the Cisco Unified Wireless IP Phone 7921G. Ensure that the metal contacts on the battery and the phone are facing each other. Step 2 Press the battery to the body of the phone until it locks into place.
Page 59: Using The Power Supply To Charge The Phone
Locking catch Metal contacts Battery catches The MAC address for each Cisco Unified Wireless IP Phone 7921G appears on a printed label on the Note back of the phone underneath the battery. Using the Power Supply to Charge the Phone To charge the battery in your phone quickly, you can use the power supply.
Page 60 When the battery is charged, you can disconnect the power supply from the phone, and unplug the power Step 4 cord from the AC outlet. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 3-10 OL-15985-01...
Page 61: Using The Usb Cable To Charge The Phone
Charge the phone by using a USB cable connected to a USB port on your PC. Charging times are longer when you use the USB cable. See Table 3-4 for charging times. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 3-11 OL-15985-01...
Page 62 Step 6 Click Finish to close the dialog box. The phone briefly displays “USB Connected” on the status line. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 3-12 OL-15985-01...
Page 63: Installing And Using The Desktop Charger
For information about using the desktop charger speakerphone, refer to the “Using a Handset, Headset, and Speakerphone” in the Cisco Unified Wireless IP 7921G Phone Guide.
Page 64: Using The Desktop Charger To Charge The Phone
Plug the AC adapter into an AC outlet, and insert the connector into the back of the desktop charger. Step 2 Insert the Cisco Unified Wireless IP Phone 7921G into the upper compartment of the charger. Insert the spare battery into the lower compartment.
Page 65: Configuring Wireless Lan Settings
Cisco Unified Wireless IP Phone 7921G Web Pages You can access the Cisco Unified Wireless IP Phone 7921G web pages to set up the WLAN settings in the network profile. For a new phone with the factory default settings, you must use the USB cable to connect the phone to your PC.
Page 66: Connecting Headsets
• Connecting Headsets To connect a headset to the Cisco Unified Wireless IP Phone 7921G, plug it into the headset port on the right side of the phone. You can use the headset with all of the features on the Cisco Unified Wireless IP Phone 7921G, including the Volume and Mute buttons.
Page 67: Active And Standby Phone Modes
Active and Standby Phone Modes, page 3-17 • Understanding the Phone Startup Process, page 3-18 Active and Standby Phone Modes When the Cisco Unified Wireless IP Phone 7921G is powered on, it can be in one of these two modes: • Active mode •...
Page 68: Standby Mode
• Resolving Startup and Connectivity Problems, page 10-1 • Understanding the Phone Startup Process When connecting to the wireless VoIP network, the Cisco Unified Wireless IP Phone 7921G goes through a standard startup process, as described in Table 3-6. Depending on your specific network configuration, some of the steps might not occur on your unified Note IP phone.
Page 69 Profile Files, page 2-12 profile file contains various parameters and values for • Resolving Startup and phone and network settings. Connectivity Problems, page 10-1 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 3-19 OL-15985-01...
Page 70 Manager Administration, page 7-19 Related Topics Configuring Cisco Unified Wireless IP Phones, page 7-1 • Phone Configuration Files and Profile Files, page 2-12 • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 3-20 OL-15985-01...
Page 71: Setting Up Your Pc To Configure The Phones
Using the Cisco Unified Wireless IP Phone 7921G Web Pages This chapter describes how to set up your PC to configure a Cisco Unified Wireless IP Phone 7921G by using a USB connector and how to remotely access a configured phone over the WLAN. It contains the following sections: •...
Page 72: C H A P T E R 4 Using The Cisco Unified Wireless Ip Phone 7921G Web Pages
Scroll to the Internet Protocol (TCP/IP) section and click Properties. Step 3 In the Internet Protocol (TCP/IP) Properties window, choose Use the following IP address: Step 4 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 73: Accessing The Phone Web Page
Step 5 In the IP address field, enter a static IP address for the PC: 192.168.1. (1 through 254 except 100), for example: 192.168.1.11 By default, the Cisco Unified Wireless IP Phone 7921G is configured with 192.168.1.100 so you Note •...
Page 74: Using The Usb Cable To Configure Phones
• Updating Phones Remotely You can update settings on a Cisco Unified Wireless IP Phone 7921G that is already configured and in use. To do so, you can use the wireless LAN to remotely access and configure these phones. Use these sections for information about remotely updating phones: •...
Page 75: Accessing The Configuration Web Page For A Phone
Step 6 Accessing the Configuration Web Page for a Phone You can access the web page for any Cisco Unified Wireless IP Phone 7921G that is connected to the WLAN. Be sure the phone is powered on and connected. To access the web page for the Cisco Unified Wireless IP Phone 7921G follow these steps:...
Page 76 Be sure to change the Web Access privileges and reset the phone to prevent users from making configuration changes on the phone web pages. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 77: Home: Summary Web Page
If a wireless IP phone was previously registered to Cisco Unified CallManager Administration Release Note 4.x, and you try to register to Cisco Unified Communications Manager Administration 5.x or later, the Phone Configuration web page password might be set to “Cisco.”...
Page 78: Configuring Network Profiles
U-APSD or PS-Poll when it is idle. When the phone is in an active call, the power save mode is controlled by Call Power Save Mode. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 79 Note It is recommended that the end point and the AP be configured at TSpec 12 because a lower rate may cause network congestion. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 80 WPA, WPA2 (requires a username – and password) WPA-Pre-shared key, – WPA2-Pre-shared key (requires a passphrase/pre-shared key) – CCKM (requires a username and password) Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-10 OL-15985-01...
Page 81 Authentication, page 4-19 • Manufacturing issued User installed • Validate Server Enables the phone to use the server certificate. Certificate Two options: True or False. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-11 OL-15985-01...
Page 82 Check All/Clear Three buttons that check all channels and Tx All/Check power levers, or clear all. The non-overlap Non-overlap button disables overlap. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-12 OL-15985-01...
Page 83: Configuring Wireless Settings In A Network Profile
Set the Call Power Save Mode to U-APSD or PS-Poll to conserve battery power. Step 6 Choose the signal mode or priority of signal modes in the 802.11 Mode field that is used by your WLAN, Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-13 OL-15985-01...
Page 84: Configuring Wireless Lan Security
(WPA, WPA2, WPA-PSK, WPA2-PSK, CCKM). The type of authentication and encryption schemes that you are using with your WLAN determine how you set up the authentication, security, and encryption options in the network profiles for the Cisco Unified Wireless IP Phones.
Page 85: Configuring The Authentication Mode
Requires Passphrase Pre-Shared Key Note Beginning with Cisco Wireless IP Phone 7921G firmware release 1.1, CCKM is operational with the WPA authentication mode using AES encryption. Configuring the Authentication Mode To select the Authentication Mode for this profile, follow these steps: Procedure Choose the network profile that you want to configure.
Page 86: Configuring The Username And Password
Passphrase/Pre-shared key in the Wireless Security Credentials area. Pre-shared Key Formats The Cisco Unified Wireless IP Phone 7921G supports ASCII and hexadecimal formats. You must use one of these formats when setting up a WPA Pre-shared key: Hexadecimal For hexadecimal keys, you must enter 64 hex digits (0-9 and/or A-F);...
Page 87 Enter an ASCII string or Hex digits in the Passphrase/Pre-shared key field. See “Pre-shared Key Step 3 Formats” section on page 4-16. Click Save to make the change. Step 4 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-17 OL-15985-01...
Page 88: Setting Wireless Encryption
WEP or Shared Key + WEP, you must enter an ASCII or hexadecimal WEP Key. The WEP Keys for the phone must match the WEP Keys assigned to the access point. Cisco Unified Wireless IP Phone 7921G and Cisco Aironet Access Points support both 40-bit and 128-bit encryption keys.
Page 89: Installing Authentication Certificates For Eap-Tls Authentication
To verify the Cisco ACS certificate, a trusted subordinate certificate (if any) and root certificate (created from a CA) on the Cisco ACS server must be exported and installed on the phone. These certificate(s) are part of the trusted certificate chain used to verify the trust of the certificate from the ACS server.
Page 90 Mean Time (GMT), the authentication certificate validation might fail. It is recommended that you set the local date and time ahead of the GMT. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-20...
Page 91 Exporting the CA Certificate from the ACS Using Microsoft Certificate Services Use this method for exporting the CA certificate from the ACS server that signed the user installed certificate or ACS certificate. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-21 OL-15985-01...
Page 92 CA administrator. The following steps describe the basic CSR approval process on the CA web page. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-22...
Page 93 At the Advanced Certificate Request page, select Submit a certificate request by using a base-64-encoded PKCS CMC. Step 6 Copy the certificate data from the Cisco Unified Wireless IP Phone 7921G and paste it in the Saved Request text box, then click Submit. Step 7 Once the CSR is approved, the certificate must be exported in a DER encoded format and sent to the original requestor.
Page 94: Configuring Peap
To enable server identity validation, follow these steps: Procedure From the Network Profile Advance Profile page, choose PEAP as the security mode in the WLAN Step 1 Security section. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-24 OL-15985-01...
Page 95: Configuring Ip Network Settings
Configuring IP Network Settings The Cisco Unified IP Phones enable DHCP, by default, to automatically assign IP addresses to devices when you connect them to the network. If you do not use DHCP in your network, then you must disable DHCP and manually enter network configuration information.
Page 96: Disabling Dhcp
Configuring the Alternate TFTP Server If you use DHCP to direct the Cisco Unified IP Phones to a TFTP server, you can also assign an alternative TFTP server to some phones instead of the one assigned by DHCP.
Page 97: Configuring Advanced Network Profile Settings
In the Max Tx Power field, keep the default value. Caution You must check at least one channel after using “Clear All,” to enable the phone to access the WLAN. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-27 OL-15985-01...
Page 98: Configuring Usb Settings
Step 5 Related Topics Accessing the Phone Web Page, page 4-3 • Configuring Network Profiles, page 4-8 • Configuring Trace Settings, page 4-29 • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-28 OL-15985-01...
Page 99: Configuring Trace Settings
In the Advanced Trace Settings section, in the Preserve Logs field, choose one of the following: Step 7 True—Save the trace logs to flash memory on the phone. • False—Save the trace logs to RAM. • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-29 OL-15985-01...
Page 100 Yes—Default value. Settings will be reset to the default values • upon reboot. No—Trace settings will not reset upon reboot. • Related Topics • Accessing the Phone Web Page, page 4-3 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-30 OL-15985-01...
Page 101: Configuring Wavelink Avalanche Server Settings
Configuring the Phone Book Cisco Unified Wireless IP Phone 7921G users can store up to 100 contacts in the Phone Book on the phone. As the administrator, you can configure the Phone Book for these phones from the phone web page.
Page 102: Importing And Exporting Contacts
Microsoft Excel and Microsoft Outlook. After editing or creating records, the records can transferred to the Cisco Unified Wireless IP Phone 7921G. The Cisco Unified Wireless IP Phone 7920G CSV files can be imported into the Cisco Unified Wireless Note IP Phone 7921G.
Page 103 Outlook 2003 uses the native international language characters when displaying the contacts list, it does not export these characters in the CSV file format. The Cisco Unified Wireless IP Phone 7921G uses the UTF-8 to encode the international character sets and Microsoft Outlook 2003 can import or export these characters;...
Page 104: Searching The Phone Book Information
From the phone web page, choose PHONE BOOK. Step 1 At the Phone Book page, click New. The Phone Book (New Contact) page appears. Step 2 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-34 OL-15985-01...
Page 105: Deleting Contacts
At the Phone Book (Speed Dial List) window, click an unassigned speed dial. The speed dial you Step 3 selected is assigned to the contact number, and the speed dial code number appears next to the contact number. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-35 OL-15985-01...
Page 106: Using System Settings
Using System Settings, page 4-36 • Backup Settings for Phone Configuration, page 4-37 • • Upgrading Phone Firmware, page 4-40 • Changing the Admin Password, page 4-40 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-36 OL-15985-01...
Page 107: Backup Settings For Phone Configuration
For security reasons, none of the WLAN security information, such as authentication, username and Note password, pre-shared keys, or WEP keys are exported to the template. You have to re-enter this information. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-37 OL-15985-01...
Page 108: Creating A Configuration Template
IP Address Subnet Mask – Default Router – Primary DNS Server – Secondary DNS Server – Use DHCP to get TFTP Server • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-38 OL-15985-01...
Page 109: Importing A Configuration Template
You must enter the same key that you used to export the configuration template. Note Step 4 Use the Browse button to locate the configuration template and click Open. The configuration file downloads to the phone. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-39 OL-15985-01...
Page 110: Upgrading Phone Firmware
Changing the Admin Password Cisco Unified CallManager 4.x If you are running Cisco Unified CallManager 4.x, you can use the Change Password area on the web page to change the administration password for the phone web pages. To change the password on the web page, you must first enter the old password. Enter the new password and then reenter the new password to confirm the change.
Page 111: Viewing The Site Survey Report On The Web
The Site Survey Report stores information about each AP until it reaches a limit of 256 APs. For each AP, up to ten neighbors are tracked. Table 4-8 shows the information shown in the site survey report. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-41 OL-15985-01...
Page 112 The entire RSSI range in which this AP has been observed. BSS Lost Count When a sweep does not discover an AP, the last best AP is flagged with a BSS lost count. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-42 OL-15985-01...
Page 113 AP. May only be available if WMM is supported. This feature is critical to talk time and achieving maximum call density on the wireless IP phone. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-43 OL-15985-01...
Page 114 Cisco, the differences are reported as warnings, and warning messages appear at the bottom of this report. All other APs are compared against the reference AP for consistency. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 4-44 OL-15985-01...
Page 115: Accessing Network And Phone Settings
Wireless IP Phone 7921G by using the Settings menu. Note You can control whether a Cisco Unified Wireless IP Phone 7921G has access to the Settings menu from the Cisco Unified Communications Manager Administration Phone Configuration page. Use the Settings Access field in the Product Specific Configuration section of the phone configuration page. For more information, see the “Product-Specific Configuration Options for the Cisco Unified Wireless IP...
Page 116: C H A P T E R 5 Configuring Settings On The Cisco Unified Wireless Ip Phone
Note You can control whether a Cisco Unified Wireless IP Phone 7921G has access to the Network Profiles menu from the Cisco Unified Communications Manager Administration Phone Configuration page. Use the Settings Access field in the Product Specific Configuration section of the phone configuration page.
Page 117: Accessing A Network Profile
Chapter 5 Configuring Settings on the Cisco Unified Wireless IP Phone Configuring Network Profile Settings Accessing a Network Profile To view or configure the Network Profile menu on a Cisco Unified Wireless IP Phone 7921G, follow these steps. Procedure Step 1 Choose SETTINGS >...
Page 118: Guidelines For Editing Settings In The Network Profile
DHCP Server IP address of the Dynamic Host Configuration Configuring DHCP Settings, Protocol (DHCP) server from which the phone page 5-6 obtains its IP address Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 119 Product-Specific Configuration the phone Options for the Cisco Unified Wireless IP Phone 7921G, page 7-13 No—Indicates that the speakerphone is enabled on the phone Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 120: Configuring Dhcp Settings
Configuring Network Profile Settings Configuring DHCP Settings The Cisco Unified IP Phones enable DHCP, by default, to automatically assign IP addresses to devices when you connect them to the network. If you do not use DHCP in your network, then you must disable DHCP and manually enter the network configuration information.
Page 121: Configuring An Alternate Tftp Server
Configuring an Alternate TFTP Server If you use DHCP to direct the Cisco Unified IP Phones to a TFTP server, you can also assign an alternative TFTP server to some phones instead of the one assigned by DHCP. To assign an alternate TFTP server to a phone, follow these steps:...
Page 122: Erasing The Configuration
Accessing the WLAN Configuration Menu, page 5-8 • Changing WLAN Configuration Settings, page 5-9 • Accessing the WLAN Configuration Menu To access the WLAN Configuration menu options on a Cisco Unified Wireless IP Phone 7921G, follow these steps: Procedure Step 1 Choose SETTINGS > Network Profiles.
Page 123: Changing Wlan Configuration Settings
WPA-PSK, WPA2-PSK, or CCKM that must use a wireless domain server (WDS) UserName User name for the wireless network (up to 32 characters) Configuring the Username and Password, page 4-16 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 124: Changing Phone Settings
Note You can control whether a Cisco Unified Wireless IP Phone 7921G has access to the Phone Settings menu from the Cisco Unified Communications Manager Administration Phone Configuration page. Use the Settings Access field in the Product Specific Configuration section of the phone configuration page.
Page 125 Chapter 5 Configuring Settings on the Cisco Unified Wireless IP Phone Changing Phone Settings To access the Phone Settings menu options on a Cisco Unified Wireless IP Phone 7921G, follow these steps: Procedure Step 1 Choose SETTINGS > Phone Settings.
Page 126: Configuring The Security Certificate On The Phone
Alternatively, you can initiate the installation of an LSC from the Security Configuration menu on the phone. This menu also lets you update or remove an LSC. Before you do so, make sure that the appropriate Cisco Unified Communications Manager and the CAPF security configurations are complete: •...
Page 127: Changing The Usb Configuration
• Use the IP address and subnet mask assigned in this area. • To view or configure the USB port configuration on a Cisco Unified Wireless IP Phone 7921G, follow these steps: Procedure Choose SETTINGS > System Configuration > USB.
Page 128 Related Topics • Accessing Network and Phone Settings, page 5-1 • Configuring Network Profile Settings, page 5-2 Changing Phone Settings, page 5-10 • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 5-14 OL-15985-01...
Page 129: Before You Begin
• Updating the Phone, page 6-11 • There is no support for Traffic Stream Rate Set (TSRS) or Cisco Compatible Extensions (CCX) V4. Note Before You Begin Before you can use the Wavelink Avalanche Management Console to configure phones, ensure that you have the necessary components and follow the best practices during your setup.
Page 130: Best Practices
• configure this option, see Assigning the Wavelink Avalanche Server, page 6-2. Configure a Cisco Access Point to use a default SSID of “cisco” with open authentication and no • encryption. Assigning the Wavelink Avalanche Server If you did not configure DHCP Option 149 with the Wavelink Avalanche server IP address, you must manually assign it.
Page 131: Assigning The Wavelink Avalanche Server Using The Phone Web Page
Updating the Phone, page 6-11 Assigning Attributes for the Phone You can assign attributes on the Cisco Unified Wireless IP Phone 7921G that can be used to distinguish it from other mobile devices connected to the Wavelink Avalanche server. These attributes can be used as search criteria for locating phones on the Wavelink Avalanche server.
Page 132: Defining Custom Names And Custom Values On The Phone
In the Wavelink Custom Parameters section, enter values in the Name and Value fields. You can define Step 2 up to four pairs of custom parameters. Do not use spaces in the Name field. Note Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 133: Installing The Cisco Unified Wireless Ip Phone 7921G Configuration Utility
Installing the Cisco Unified Wireless IP Phone 7921G Configuration Utility The Cisco Unified Wireless IP Phone Configuration Utility file is provided by Cisco in the “.ava” file format. The phone configuration utility must be installed on the Wavelink Avalanche Management Console.
Page 134: Configuring Profile Settings
Assigns the Service Set Identifier (SSID) to this profile. You must assign the same SSID to the phone that is also assigned to access points in the wireless network. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 135 Required for LEAP, EAP-FAST, and Auto (AKM) authentication methods Credentials Username Assigns the network authentication username for this profile Password Assigns the network authentication password for this profile Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 136 Minimum data rate that outbound traffic uses Surplus Bandwidth Excess bandwidth beyond application requirements Antenna Settings Antenna Selection for • Vertical 802.11A Horizontal • Diversity • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 137: Configuring Usb Settings
Set up a remote server to store trace logs. If enabled, enter remote address and remote port. Remote IP Address Enter remote IP address if Enable Remote Syslog is enabled. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 138: Configuring Wavelink Avalanche Server Settings
Assign up to four attribute names to the phone to be used as selection criteria. Custom Value 1-4 Define the values for each Custom Name to be used as selection criteria. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 6-10 OL-15985-01...
Page 139: Updating The Phone
• Choose Client Settings. In the Avalanche Client Controls window, enable the Force package sync during Update Now checkbox, and click Update Now. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 6-11 OL-15985-01...
Page 140: Cisco Unified Wireless Ip Phone 7921G Administration Guide For Cisco Unified Communications Manager Release
Chapter 6 Configuring the Phone Using the Wavelink Avalanche Server Updating the Phone Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 6-12 OL-15985-01...
Page 141: Configuring Cisco Unified Wireless Ip Phones
To provide telephony call routing and call–control features for the Cisco Unified Wireless IP Phone 7921G, you must use Cisco Unified Communications Manager Administration. For instructions about adding these devices, refer to the “Cisco Unified IP Phone Configuration” chapter in the Cisco Unified Communications Manager Administration Guide.
Page 142: C H A P T E R 7 Configuring Features, Templates, Services, And Users
Cisco Unified Communications Manager Administration also provides several service parameters that Note you can use to configure various telephony functions. For more information about service parameters and the functions that they control, you can use the I or ? button on the Cisco Unified Communications Manager configuration page. Table 7-1...
Page 143 Cisco Unified Communications • Manager System Guide, “Cisco Unified IP Phones” chapter. Cisco Unified Communications • Manager Features and Services Guide, “Call Back” chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 144 Call Forward All initiator for important chapter. calls. The override works whether the Call Forward All target phone number is internal or external. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 145 Cisco Unified Communications • Manager System Guide, “Understanding Route Plans” chapter. Cisco Unified Communications • Manager Features and Services Guide, “Call Display Restrictions” chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 146 Manager 4.x—Cisco Unified Communications Manager Administration Guide, “Cisco Unified IP Phone Configuration” chapter. • Cisco Unified Communications Manager System Guide, “Cisco Unified IP Phones” chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 147 Common Phone Profile window and the Phone Configuration window (Phone Configuration window value takes precedence). BLF Status Depicts DND—Enables DND status to • override busy/idle state. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 148 For more information, refer to Cisco authorization Unified Communications Manager codes (FAC) Features and Services Guide, “Client Matter Codes and Forced Authorization Codes” chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 149 • original called party. Manager System Guide, “Cisco Unified IP Phones” chapter. • Cisco Unified Communications Manager Features and Services Guide, “Immediate Divert” chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 150 For more information refer to Cisco conference participants call a predetermined number at a scheduled Unified Communications Manager time. Administration Guide, “Meet-Me Number/Pattern Configuration” chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 7-10 OL-15985-01...
Page 151 (DN) listed in call logs, speed-dials, and corporate Unified Communications Manager directories. The Busy Lamp Field (BLF) for the DN Features and Services Guide, “Presence” displays the call state. chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 7-11 OL-15985-01...
Page 152 Cisco Unified Communications • Manager Features and Services Guide, “Custom Phone Rings” chapter. “Creating Custom Phone Rings” • section on page 7-22. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 7-12 OL-15985-01...
Page 153 Manager Administration Guide, “Cisco Voice-Mail Port Configuration” chapter. • Cisco Unified Communications Manager System Guide, “Voice Mail Connectivity to Cisco Unified Communications Manager” chapter. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 7-13 OL-15985-01...
Page 154: Product-Specific Configuration Options For The Cisco Unified Wireless Ip Phone 7921G
911 or an emergency number. Enter numbers up to 16 digits in length. Application URL—Specifies the URL that the phone contacts application services. The maximum • length is 256 characters. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 7-14 OL-15985-01...
Page 155 Restrict Data Rate—Enables or disables the restriction of the upstream and downstream PHY rates • according to Cisco CX (CCX) V4 Traffic Stream Rate Set IE (S54.2.6). The default is disabled. It is recommended that the end point device and the AP be configured at TSpec 12 because a Note lower rate may cause network congestion.
Page 156: Configuring Softkey Templates
Step 4 Configuring Softkey Templates Administrators can change the order of softkeys for the Cisco Unified Wireless IP Phone 7921G by using Cisco Unified Communications Manager Administration. Unlike other Cisco Unified IP Phones that have buttons for some functions, the Cisco Unified Wireless IP Phone 7921G has two non-configurable softkeys that are set for: •...
Page 157: Softkey Templates For The Cisco Unified Wireless Ip Phone 7921G
Phone Configuration page. For more information about modifying phone button templates, refer to “Cisco Unified IP Phones” chapter in the Cisco Unified Communications Manager System Guide for your release. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 7-17 OL-15985-01...
Page 158: Setting Up Services
Setting Up Services The Cisco Unified Wireless IP Phone 7921G can have up to six lines and up to 24 connected calls. The default button template uses position 1 for lines and assigns position 2 through 6 as speed dial. You can assign these features to button positions: •...
Page 159: Configuring Corporate And Personal Directories
Creating Custom Phone Rings, page 7-22 • Configuring Corporate and Personal Directories The Directory menu on the Cisco Unified Wireless IP Phone 7921G gives users access to several directories. These directories can include: Corporate Directory—Allows a user to look up phone numbers for co-workers.
Page 160: Adding Users To Cisco Unified Communications Manager Administration
• Address Book Synchronization Tool (TABSynch) Users can configure personal directory entries on the Cisco Unified IP Phone. To configure a personal directory, users must have access to the following: User Options web pages—Make sure that users know how to access their User Options web pages.
Page 161: Managing The User Options Web Pages
Managing the User Options Web Pages From the User Options web page, users can customize and control several phone features and settings. For detailed information about the User Options web pages, refer to Cisco Unified Wireless IP Phone 7921G Phone Guide.
Page 162: Creating Custom Phone Rings
Cisco Unified Communications Manager or by creating your own pulse code modulation (PCM) files and editing the RingList.xml file. Refer to the “Custom Phone Rings” chapter in the Cisco Unified Communications Manager Features and Services Guide for more information about customized ring tones.
Page 163: Chapter 8 Viewing Security, Device, Model, Status, And Call Statistics Information On The Phone
Viewing Security, Device, Model, Status, and Call Statistics Information on the Phone This chapter describes how to use the Settings menus on the Cisco Unified Wireless IP Phone 7921G to view the Security Configuration menu, Device Information menu, Model Information menu, Status menu, and the Call Statistics screen.
Page 164 “Trust List Screen” section on page 8-4. CAPF Server Displays the IP address or host name and the port of the CAPF that the phone uses. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 165: Accessing The Ctl File Screen
5-6.) Note When the wireless IP phone is connected to a Cisco Unified Communications Manager Release 5.0 or later, you can have multiple security profiles assigned to a phone. When the phone has more than one security profile using different secure Cisco Unified Communications Manager clusters, you must delete the CTL file from the current profile before enabling another profile.
Page 166: Trust List Screen
Viewing Call Statistics, page 8-14 • Viewing Firmware Versions, page 8-16 Viewing Device Information You can access the Device Information screen on the Cisco Unified Wireless IP Phone 7921G and to view information about the current configuration: • Cisco CallManager servers Network settings •...
Page 167 Indicates whether this phone is using DHCP for its IP address assignment or not. Alternate TFTP Indicates whether this phone uses a TFTP server other than the one assigned by DHCP. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 168 Version of the network locale loaded on the phone. Security Information GARP Enabled Indicates whether the phone learns MAC addresses from Gratuitous ARP responses. Security Mode Security mode assigned to the phone. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 169: Viewing Model Information
• Viewing the Status Menu, page 8-8 Viewing Model Information You can view the Model Information screen on the Cisco Unified Wireless IP Phone 7921G to see information about the hardware and software. To view this screen, follow these steps: Procedure Choose SETTINGS >...
Page 170: Viewing The Status Menu
Trace Settings—Displays the debug information for the phone. The following must be enabled: – Remote syslog Trace levels – Preserve logs – Preserve trace levels – Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 171: Viewing The Status Messages
Viewing the Status Messages You can use the Settings menu and Status menu to view status messages for the Cisco Unified Wireless IP Phone 7921G. The Status Messages screen displays up to 10 of the most recent status messages that the phone has generated.
Page 172 Cisco Unified Communications Manager Security Guide. TFTP Error The phone does not recognize an error Contact the Cisco TAC. code provided by the TFTP server. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-10 OL-15985-01...
Page 173 • No network connectivity between the TFTP server and the phone—Verify the network connections. • TFTP server is down—Check configuration of TFTP server. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-11 OL-15985-01...
Page 174: Viewing The Current Configuration
Amount of elapsed time in days and hours since the phone connected to Cisco Unified Communications Manager RxPkts Number of packets received by the phone Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-12 OL-15985-01...
Page 175 Maximum sequence of failure due to maximum retry limit Related Topics Viewing the Status Messages, page 8-9 • • Viewing Call Statistics, page 8-14 • Viewing Firmware Versions, page 8-16 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-13 OL-15985-01...
Page 176: Viewing Call Statistics
This number is not necessarily identical to the number of RTP voice packets received since the call began because the call might have been placed on hold. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-14 OL-15985-01...
Page 177 Version of the Cisco proprietary algorithm used to calculate MOS LQK scores. CumConcealRatio Total number of concealment frames divided by total number of speech frames received from start of the voice stream. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-15 OL-15985-01...
Page 178: Viewing Firmware Versions
• Viewing Firmware Versions, page 8-16 Viewing Firmware Versions You can verify the firmware versions that are used on the Cisco Unified Wireless IP Phone 7921G by viewing the Firmware Info screen. The firmware version name is in this format: Product_Name-Model-Protocol.Version Number.Filetype...
Page 179 Identifies the Wireless LAN firmware version running in the phone Related Topics • Viewing the Status Messages, page 8-9 • Viewing Network Statistics, page 8-12 Viewing Call Statistics, page 8-14 • Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-17 OL-15985-01...
Page 180 Chapter 8 Viewing Security, Device, Model, Status, and Call Statistics Information on the Phone Viewing the Status Menu Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 8-18 OL-15985-01...
Page 181: Chapter 9 Monitoring The Cisco Unified Wireless Ip Phone Remotely
Chapter 10, “Troubleshooting the Cisco Unified Wireless IP Phone 7921G.” Accessing the Web Page for a Phone To access the web page for a Cisco Unified Wireless IP Phone 7921G, perform the following steps. Procedure Obtain the IP address of the Cisco Unified Wireless IP Phone 7921G using one of these methods: Step 1 Search for the phone in Cisco Unified Communications Manager by choosing Devices >...
Page 182: Wireless Lan Statistics
Wireless LAN Statistics Step 3 Log in to the web pages with username: admin and enter the password: Cisco for the phone web pages. The web pages for a Cisco Unified Wireless IP Phone 7921G includes these items for monitoring the phone: Wireless LAN Statistics—Provides information about the wireless LAN configuration.
Page 183: Network Statistics
Number of input datagrams discarded because IP address in header destination field was not valid IpInForwDatagrams Number of input datagrams that were forwarded to another IP destination Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 184 Number of times TCP connections for which the current state is either ESTABLISHED or CLOSE-WAIT state TcpInSegs Number of segments received including those in error on current connections Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 185: Stream Statistics
Receiver DSCP DSCP markings display for rx and tx packets. EF is always used (Previous, Current) unless Cisco Unified Communications Manager Administration configuration changes. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 186 Number of seconds that have concealment events (lost frames) from the start of the voice stream (includes severely concealed seconds) Related Topic • Monitoring the Voice Quality of Calls, page 10-12 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 187: Resolving Startup And Connectivity Problems
Manager Troubleshooting Guide. Resolving Startup and Connectivity Problems After installing a Cisco Unified Wireless IP Phone 7921G web pages in your network and adding it to Cisco Unified Communications Manager Administration, the phone should start up as described in the “Understanding the Phone Startup Process”...
Page 188: C H A P T E R 10 Troubleshooting The Cisco Unified Wireless Ip Phone 7921G
Go to the Phone Recovery section on the web page and upload a new Phone Software TAR file. • If, after attempting these solutions, the phone still does not start up, contact a Cisco technical support representative for additional assistance.
Page 189: Symptom: No Registration With Cisco Unified Communications Manager
Check that the correct EAP username and password are entered on phone. AP Error—Cannot support all requested capabilities On the access point, check that CKIP/CMIC is not enabled for the voice VLAN SSID. The Cisco Unified Wireless IP Phone 7921G does not support these features.
Page 190: Registering The Phone With Cisco Unified Communications Manager
Checking Network Connectivity If the network is down between the access point and the TFTP server or Cisco Unified Communications Manager, the phone cannot start up properly. Ensure that IP connectivity exists between the WLAN and the Cisco Unified Communications Manager and TFTP servers.
Page 191: Verifying Ip Addresses
8-12. Verifying IP Addresses You should verify the IP addressing for the Cisco Unified Wireless IP Phone 7921G. If you are using DHCP, the DHCP server should provide these values. If you have assigned a static IP address to the phone, you must enter these values manually.
Page 192: Cisco Communications Manager And Tftp Services Are Not Running
If the Cisco CallManager service is not running, all devices on the network that rely on it to make phone calls will be affected. If the TFTP service is not running, many devices will not be able to start up successfully.
Page 193: Creating A New Configuration File
If you continue to have problems with a particular phone that other suggestions in this chapter do not resolve, the configuration file might be corrupted. To create a new configuration file, follow these steps: Procedure From Cisco Unified Communications Manager, select Device > Phone > Find to locate the phone Step 1 experiencing problems. Step 2 Choose Delete to remove the phone from the Cisco Unified Communications Manager database.
Page 194: Symptom: Cisco Unified Wireless Ip Phone Resets Unexpectedly
If the network connection and Cisco Unified Communications Manager connection are stable, a Cisco Unified Wireless IP Phone 7921G should not reset on its own. Typically, a phone resets if it has problems connecting to the access point and LAN or to Cisco Unified Communications Manager.
Page 195: Verifying Voice Vlan Configuration
Resolving Voice Quality and Roaming Problems Cisco Unified IP Phones send messages with request type 151 to renew their DHCP address leases. If the DHCP server expects messages with request type 150, the lease will be denied, forcing the phone to restart and request a new IP address from the DHCP server.
Page 196: Symptom: Audio Problems
• Check your gateway and IP routing for voice problems. Check if a firewall or NAT is in the path of the RTP packets. If so, you can use Cisco IOS and • PIXNAT to modify the connections so that two-way audio is possible.
Page 197: Symptom: Improper Roaming And Voice Quality Or Lost Connection
Delays in Voice Conversation While Roaming Use the Site Survey Utility on the Cisco Unified Wireless IP Phone 7921G to see if there is another acceptable access point as a roaming option. The next access point should have an RSSI value of 35 or greater to roam successfully.
Page 198: Monitoring The Voice Quality Of Calls
Phone Does Not Roam Back to Preferred Band When the Cisco Unified Wireless IP Phone 7921G web pages is set to 5 GHz band as the preferred network and is authenticated to an AP on that band and roams to an area in which 5 GHz is not longer available but 2.4 GHz is available, the phone operates.
Page 199: Using Voice Quality Metrics
Conceal Ratio changes should indicate greater than 3 percent frame loss. MOS LQK scores can vary based on the codec that the Cisco Unified IP Phone uses. The following codecs provide these maximum MOS LQK scores under normal conditions with zero frame loss: G.711 codec gives 4.5 score...
Page 200: General Troubleshooting Information
Wait for the phone to complete the searching and scanning process. Depending on the signal strength of the available WLAN, this process can take a few minutes. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 10-14 OL-15985-01...
Page 201: Troubleshooting Tips For The Cisco Unified Wireless Ip Phone 7921G
Cisco Unified Communications Manager. Power cycle the phone to reset the time or date. The time shows in either 12 hour or 24 hour format. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 10-15 OL-15985-01...
Page 202 Phone call cannot be established The phone does not have a DHCP IP address, is unable to register to Cisco Unified Communications Manager, and shows a Configuring IP or Registering message.
Page 203: Logging Information For Troubleshooting
Cisco Unified Communications Manager. The result shows the number of hops and the IP address of each hop to reach the Cisco Unified Communications Manager server. You can use this information to check connectivity between the phone, Cisco Unified Communications Manager servers and gateways during a call.
Page 204: Erasing The Local Configuration
The phone cycles through normal startup procedures. Or press No to cancel the reset. Step 4 Press Settings > Network Profiles to reconfigure the network settings for your WLAN. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 10-18 OL-15985-01...
Page 205 Erasing the Local Configuration Caution Erasing the local configuration removes network profiles that are set up for the Cisco Unified Wireless IP Phone to access the WLAN. You must reconfigure the network settings after performing the reset to enable the phone to access the WLAN.
Page 206 Chapter 10 Troubleshooting the Cisco Unified Wireless IP Phone 7921G Erasing the Local Configuration Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 10-20 OL-15985-01...
Page 207: Appendix
Providing Information to Users By Using a Website If you are a system administrator, you are likely the primary source of information for Cisco Unified IP Phone users in your network or company. It is important to provide current and thorough information to end users.
Page 208: Appendix A Providing Information To User By Using A Website
The Cisco Unified Wireless IP Phone 7921G has many of the same phone features as the IP phone desktop models, such as Mute, access to voice messaging, and directories. The phone has a limited number of buttons, because of its size.
Page 209: How Users Get Copies Of Cisco Unified Ip Phone Manuals
Cisco website, Cisco recommends that you provide links to the current documentation. If you do not want to or cannot send users to the Cisco website, Cisco suggests that you download the PDF files and provide them to end users on your website.
Page 210: How Users Configure Phone Features And Services
End users can perform a variety of activities using the Cisco Unified Communications Manager User Options web page. Cisco Unified Wireless IP Phone users can set up speed dial and call forwarding numbers. Keep in mind that configuring settings on a phone using a website might be new for your end users.
Page 211 Appendix A Providing Information to Users By Using a Website How Users Access Voice Messages Refer to the Cisco Unified Wireless IP Phone 7921G Guide for information about accessing the voice messaging system from the phone at this URL: http://www.cisco.com/en/US/products/hw/phones/ps379/products_user_guide_book09186a008076b8a f.html...
Page 212 Appendix A Providing Information to Users By Using a Website How Users Access Voice Messages Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 213: Appendix
Installing the Cisco Unified Communications Manager Locale Installer If you are using Cisco Unified IP Phones in a locale other than English (United States), you must install the locale-specific version of the Cisco Unified Communications Manager Locale Installer on every Cisco Unified Communications Manager server in the cluster.
Page 214: A P P E N D I X B Supporting International Users
Cisco Unified CallManager for your Cisco Unified CallManager release. Step 4 After modifying the user locale on the Cisco Unified Wireless IP Phone 7921G, you must power cycle the phone. When deploying Cisco Unified Wireless IP Phone 7921G for the first time, you must install the 7921G Note Device Pack to add the new phone type to Cisco Unified Communications Manager.
Page 215: Appendix
AC adapters by geographic region Desktop Charger Height 75 mm (3.0 in) Desktop Charger Width 93 mm (3.7 in) Desktop Charger Depth 129 mm (5.1 in) Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 216 Appendix C Physical and Operating Environment Specifications Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 217: Appendix
A P P E N D I X Checklist for Deploying the Cisco Unified Wireless IP Phone 7921G The following topics provide an overview of procedures for adding Cisco Unified Wireless IP Phones to your network: Configuring the Wireless Network, page D-1 •...
Page 218: Configuration Tip For Cisco Aironet Access Points
If you are using EAP-FAST, you must increase the EAP request (802.1x) timeout to at least 20 seconds to ensure that the phone gets the PAC credentials successfully. To change the request timeout on the controller, follow these steps: Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 219: Configuring Qos Policies
For detailed information about configuring the Cisco Aironet Access Points, refer to this URL: http://www.cisco.com/en/US/products/hw/wireless/ps430/tsd_products_support_configure.html For the Cisco IOS access points, add the following Classifications to your Cisco IOS Access Point QoS policy: DSCP Expedited Forwarding—COS Voice <10ms Latency (6) •...
Page 220: Switch Configuration
Some tasks are optional, depending on your system and user needs. For detailed procedures and information, refer to the sources in the list. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 221 Adds, deletes, or changes order of softkey features that display on the user’s phone to meet feature usage needs. Configuring Softkey Templates, page 7-16. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 222 Note Some phones, such as those used by multiple users, do not have an associated user. Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 223: Installing The Cisco Unified Wireless Ip Phone 7921G
Provide information to end users about how to use their phones Appendix A, “Providing Information to Users By and how to configure their phone options. Using a Website.” Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 224 Appendix D Checklist for Deploying the Cisco Unified Wireless IP Phone 7921G Installing the Cisco Unified Wireless IP Phone 7921G Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 OL-15985-01...
Page 225: I N D E X
1-11 auto-registration encrypted 1-11 using Call Back using with TAPS call display restrictions auxiliary VLAN, description 2-10 caller ID call forward Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-1 OL-15985-01...
Page 226 Cisco Unified IP Phone unlocking configuration requirements CTL file screen configuring user services 7-17 current configuration installation overview 1-11, D-1 viewing 8-9, 8-12 installation requirements Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-2 OL-15985-01...
Page 227 10-5 documentation for users help, using localized versions hold do not disturb-reject hold reversion dynamic host configuration protocol, See DHCP hunt group Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-3 OL-15985-01...
Page 228 Installing the Cisco Unified Communications Manager TFTP Locale Installer Locally Significant Certificate (LSC) 5-12 log out hunt groups 7-10 network outages, identifying 10-8 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-4 OL-15985-01...
Page 229 5-1, 5-2, 5-10 Push to Talk service 7-11 menu 5-11 phone upgrade web page 4-40 phone web page about 4-1, 9-1 QBSS, description 2-10 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-5 OL-15985-01...
Page 230 2-20 secure tone indication 7-12 site survey utility security display values 2-21 AES encryption 2-16 skinny client control protocol, See SCCP Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-6 OL-15985-01...
Page 231 2-13, 4-26, 5-6 hold summary information web page hold reversion survivable remote site telephony (SRST) hunt group IP address of router immediate divert symptom join Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-7 OL-15985-01...
Page 232 7-20 trace logs web page 4-36, 4-37 specifying options that appear 7-21 trace route users option on phone 10-17 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-8 OL-15985-01...
Page 233 See WLAN for installation wireless network settings for plug socket authentication for power outages SSID for power supply WLAN for short circuit protection components Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-9 OL-15985-01...
Page 234 WLSM, wireless LAN services module encryption with TKIP, description 2-16 WPA authentication, description 2-16 WPA-pre-shared key authentication, description 2-14 XMLDefault.cnf.xml configuration file 2-12 Cisco Unified Wireless IP Phone 7921G Administration Guide for Cisco Unified Communications Manager Release 7.0 IN-10 OL-15985-01...

This manual is also suitable for:

Cp-7921g-a-k9

Cisco 7921G - Unified Wireless IP Phone VoIP Administration Manual

Preface

CHAPTER 1 Overview of the Cisco Unified Wireless IP Phone 7921G

Chapter 2 Overview of the Voip Wireles Network

CHAPTER 3 Setting up the Cisco Unified Wireless IP Phone 7921G

CHAPTER 4 Using the Cisco Unified Wireless IP Phone 7921G Web Pages

CHAPTER 5 Configuring Settings on the Cisco Unified Wireless IP Phone

CHAPTER 6 Configuring the Phone Using the Wavelink Avalanche Server

Best Practices

Assigning the Wavelink Avalanche Server

Setting up and Using the Phone Configuration Utility

Installing the Cisco Unified Wireless IP Phone 7921G Configuration Utility

Configuring Trace Settings

Updating the Phone

CHAPTER 7 Configuring Features, Templates, Services, and Users

Chapter 8 Viewing Security, Device, Model, Status, and Call Statistics Information on the Phone

Chapter 9 Monitoring the Cisco Unified Wireless IP Phone Remotely

CHAPTER 10 Troubleshooting the Cisco Unified Wireless IP Phone 7921G

Appendix

Providing Information to Users by Using a Website

Appendix A Providing Information to User by Using a Website

Appendix

Supporting International Users

Appendix

Physical and Operating Environment Specifications

Appendix

Checklist for Deploying the Cisco Unified Wireless IP Phone 7921G

I N D E X

Quick Links

Troubleshooting

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Summary of Contents for Cisco 7921G - Unified Wireless IP Phone VoIP