DescriptionParameter
Support of 100REL SIP extension for reliable
transmission of provisional responses (18x) and use
of PRACK requests. Select Yes to enable.
Default: No
SIP 100REL Enable
The external SIP port number.EXT SIP Port
The Cisco IP Phone authenticates the sender when it
receives a NOTIFY message with the following
requests:
• resync
• reboot
• report
• restart
• XML-service
Select Yes to enable.
Default: Yes
Auth Resync-Reboot
The SIP proxy can support a specific extension or
behavior when it sees this header from the user agent.
If this field is configured and the proxy does not
support it, it responds with the message, unsupported.
Enter the appropriate header in the field provided.
SIP Proxy-Require
The Remote-Party-ID header to use instead of the
From header. Select Yes to enable.
Default: Yes
SIP Remote-Party-ID
Controls when the phone sends BYE to terminate stale
call legs upon completion of call transfers. Multiple
delay settings (Referor, Refer Target, Referee, and
Refer-To Target) are configured on this screen. For
the Referror Bye Delay, enter the appropriate period
of time in seconds.
Default: 4
Referor Bye Delay
Indicates the refer-to target. Select Yes to send the
SIP Refer to the contact.
Default: No
Refer-To Target Contact
For the Referee Bye Delay, enter the appropriate
period of time in seconds.
Default: 0
Referee Bye Delay
Cisco IP Phone 8800 Series Multiplatform Phones Administration Guide
322
Cisco IP Phone Troubleshooting
SIP Settings
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