
UC2000-VE/F/G GSM/CDMA/WCDMA VoIP Gateway User Manual
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Shenzhen Dinstar Co., Ltd.
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Via: SIP/2.0 pc33.atlanta.example.com;branch=z9hG4bKnashds12
Route: sips:p1.atlanta.example.com;lr
Supported: timer
Session-Expires: 4000;
refresher=uac
Max-Forwards: 70
To: Bob <sips:[email protected]>;tag=9as888nd
From: Alice <sips:[email protected]>;tag=1928301774
Call-ID: a84b4c76e66710
CSeq: 314162 UPDATE
Contact: <sips:[email protected]>
Configuring GSM-SIP Mapping Code
This part specifies response codes between GSM cause reason and SIP response code.
SIP Response
404
Not Found
408
Request Timeout
403
Forbidden
486
Busy Here
480
Temporarily unavailable Resource unavailable
503
Service Unavailable