[SIPForum-discussion] 183 Session Progress

Bessem BEN JEMAA bessem.bj at gmail.com
Thu Jan 21 14:59:43 UTC 2010


I think that we receive this response when we have 2 signaling protocol
between end to end.

For example when we have a voip to PSTN call:

 SIP and SS7

2010/1/20 SIP Babie <sipbabie at gmail.com>

> Hi All,
> Please let me know when the provisional response  "183 Session Progress" is
> been sent as a reply of INVITE.
> Does Outbound Proxy looks for some header in INVITE on the basis of which
> it sends "183 Session Progress" provisional response, like 100rel support in
> Regards
> SIP Babie
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أسير خلف ركاب النجب ذا عرج ** مؤملا كشف ما لا قيت من عوج
فإن لحقت بهم من بعد ما سبقوا ** فكم لرب الورى في ذاك من فرج
و إن بقيت بظهر الأرض منقطعا ** فما على عرج في ذاك من حرج
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