[SIPForum-discussion] 183 Session Progress

[SIP Babie]

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
INVITE.

Regards
SIP Babie
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