Cisco 7800 Series Administration Manual page 116

Telephony Features for Cisco IP Phone
Feature
Multilevel Precedence and Preemption
Multiple Calls Per Line Appearance
Music On Hold
Mute
No Alert Name
Onhook Dialing
Pause in Speed Dial
Peer Firmware Sharing
Plus Dialing
Power Negotiation over LLDP
Programmable Feature Buttons
Cisco IP Phone 7800 Series for Third-Party Call Control Administration Guide
102
Description and More Information
Enables the user to make and receive urgent or critical calls in some specialized
environment such as military or government offices.
Each line can support multiple calls. By default, the phone supports two active calls per
line, and a maximum of ten active calls per line. Only one call can be connected at any
time; other calls are automatically placed on hold.
The system allows you to configure maximum calls/busy trigger not more than 10/6.
Any configuration more than 10/6 is not officially supported.
Plays music while callers are on hold.
Mutes the handset or headset microphone.
Makes it easier for end users to identify transferred calls by displaying the original caller's
phone number. The call appears as an Alert Call followed by the caller's telephone
number.
Allows a user to dial a number without going off hook. The user can then either pick up
the handset or press Dial.
Users can set up the speed-dial feature to reach destinations that require Forced
Authorization Code (FAC) or Client Matter Code (CMC), dialing pauses, and additional
digits (such as a user extension, a meeting access code, or a voicemail password) without
manual intervention. When the user presses the speed dial, the phone establishes the call
to the specified DN and sends the specified FAC, CMC, and DTMF digits to the
destination and inserts the necessary dialing pauses.
Provides the following advantages in high-speed campus LAN settings:
• Limits congestion on TFTP transfers to centralized remote TFTP servers
• Eliminates the need to manually control firmware upgrades
• Reduces phone downtime during upgrades when large numbers of devices are reset
simultaneously
Peer Firmware Sharing may also aid in firmware upgrades in branch/remote office
deployment scenarios that run over bandwidth-limited WAN links.
Allows the user to dial E.164 numbers prefixed with a plus (+) sign.
To dial the + sign, the user needs to press and hold the star (*) key for at least 1 second.
This applies to dialing the first digit for an on-hook (including edit mode) or off-hook
call.
Allows the phone to negotiate power using Link Level Endpoint Discovery Protocol
(LLDP) and Cisco Discovery Protocol (CDP).
You can assign features, such as New Call, Call Back, and Forward All to line buttons.