Cisco 8851, Administration Manual

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Description Parameter
The parameter by which the user agent will identify itself for this line.
If this field is blank, the actual URI used in the SIP signaling should be
automatically formed as:
sip:UserName@Domain
where UserName is the username given for this line in the User ID, and
Domain is the domain given for this profile in the User Agent Domain.
If the User Agent Domain is an empty string, then the IP address of the
phone should be used for the domain.
If the URI field is not empty, but if a SIP or SIPS URI contains no @
character, the actual URI used in the SIP signaling should be
automatically formed by appending this parameter with an @ character
followed by the IP address of the device.
SIP URI
Audio Configuration
Description Parameter
Preferred codec for all calls. The actual codec used in a call still depends
on the outcome of the codec negotiation protocol.
Select one of the following:
• G711u
• G711a
• G729a
• G729ab
• G722
• G722.2
• iLBC
• OPUS
• iSAC
Default: G711u
Preferred Codec
Select
No
to use any code. Select
Yes
to use only the preferred codes.
When you select Yes, calls fail if the far end does not support the
preferred codecs.
Default: No
Use Pref Codec Only
Codec to use if the first codec fails.
Default: Unspecified
Second Preferred Codec
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