[SIPForum-discussion] PRACK

[Moh, Yee-Kuang]

Hi SIPForum,

 

Greeting! 

 

1.      I would like to know isn't that "100rel" has to presence or mandatory
in header of the 2nd 200ok (note: it is used for responding to INVITE)? 

2.      What happen if "100rel" was missing in this 200ok header?    

3.      Does 2nd 200ok has to follow the same header with "Request:100rel"
when "183 Session Progress" is having "Request: 100rel"? I experience some GW
respond "200ok" contain "Request: timer\r\n" the call was disconnected after
picking up the phone. 

 

 

Thank you very much.

 

Regards

moh

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