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Cisco SIP IP Phone 7960 Administrator Guide
78-10497-02
Appendix A SIP Compliance with RFC-2543 Information
SIP Responses
480 Temporarily
Unavailable
See comments This response is only received by the
phone in this release. The user is notified
if this response is received.
If this response is received, the user is
notified that the callee is temporarily
unavailable (perhaps not logged on) and
any retry information is displayed.
481 Call
Leg/Transaction
Does Not Exist
See comments
This response is only received by the
phone in this release. The user is notified
if this response is received.
482 Loop Detected
483 Too Many
Hops
484 Address
Incomplete
485 Ambiguous See comments This response is only received by the
phone in this release.
If a new contact is received, the phone
might re-initiate the call.
486 Busy Here Yes The Cisco SIP IP phone generates this
response if the called party is off hook
and the call cannot be presented as a call
waiting call. Upon receiving this
response, the phone notifies the user and
generates a busy tone.
487 Request
Canceled
See comments This response is only received by the
phone in this release.
This response indicates that the initial
request is terminated with a BYE or
CANCEL request.
488 Not
Acceptable
Yes The Cisco SIP IP phone receives and
generates this response.
4xx Response Supported? Comments