Sip/Bri Trunks - Cisco UC320W Administration Manual

SIP/BRI Trunks

Use the Configuration > Ports and Trunks > SIP/BRI
Trunks page to enter the settings for the SIP providers
and BRI gateways that provide Voice over IP (VoIP)
services. You can add up to four different services.
Note: This configuration page is available if the System
Mode is set to PBX or Blend. It is not available in Key
System mode. (For more information, see the PBX/Key
System page.)
About SIP/BRI Trunks
• The Cisco UC320W supports up to 12
simultaneous calls across all trunks (including
FXO and SIP/BRI trunks).
• To configure the dialing prefix for outbound call
routing through your FXO trunks and SIP/BRI trunks, see the Outbound Trunks page.
• To enter the phone numbers and configure the inbound call routing for these trunks, see the
Inbound Calls page.
• After applying your configuration, verify your settings by placing outbound calls through this trunk.
Also use an external phone such as a cell phone to place a call to the phone numbers for this
trunk.
Adding and Removing SIP/BRI Trunks
• Add a SIP/BRI Trunk: Click this button to add a new SIP/BRI trunk.
• Provider: Choose the type of trunk.
• After choosing a provider, either complete all required fields or delete the record. An incomplete
entry produces an error, indicated by a red X in the navigation tree.
• To remove a SIP/BRI trunk: Click the delete button (X) for the trunk that you want to remove.
• To enter a list of phone numbers for a SIP/BRI trunk: See the Inbound Calls page.
SIP Provider Settings
This section is available after you select a provider. To enter the settings, click Settings. To hide the
settings, click the button again. The required fields are indicated by icons next to the field names.
However, your service provider may require other settings that are not marked in this manner. Be sure to
enter all of the information from your provider.
• Description: Enter a short description of this service for your reference.
• Proxy: Enter the IP address or domain name of the SIP proxy server.
• Require registration: Check the box if the SIP proxy server requires SIP registration.
• Outbound Proxy: If your provider specified a proxy for outbound calls, enter the IP address of
the outbound proxy server.
• Only Allow Calls To: Specify the valid phone numbers for inbound SIP traffic. Use this setting to
block unauthorized SIP traffic. Enter an exact phone number, or use wildcards. An x represents
any single digit. An asterisk * represents any string. As a best practice, enter a specific pattern
that includes all phone numbers that your SIP carrier has assigned to you. Examples: * is not
recommended because it allows any number. A blank field also allows any number. 214* is
more specific, but less so than 214xxxxxxx, which requires a 10-digit phone number starting with
214. 214842xxxx is better because it includes all assigned numbers but is not too general.
• Call Capacity: Select the maximum number of concurrent calls that are supported on this trunk
by your service provider.
• Prefix dialed numbers with: Check the box if this feature is required by the SIP provider. When
this feature is enabled, the system automatically inserts the appropriate dialing prefix to an
external number (such as +1 in the US or +44 in the UK, based on the specified Regional
Settings).
• Company Name: Enter the business name.
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