[SIPForum-discussion] [SIP Forum Discussion] INVITE request followed by CANCEL

[Chinmaya Samal]

Hi Ashutosh,

The first question is not clear enough.

Answer for your second question is 200 OK. Suppose A calls B and get back with ringing. After getting ringing from B, if A sends BYE(End Call) that means it will be responed back with 200 OK.

Thanks & Regards,
Chinmaya


On Thu, 26 Mar 2009 Ashutosh Panda wrote :
>Hi All,
>   Warm greeting to all of you.
>   I have two questions regarding Basic SIP behavior i.e. SIP2SIP call.
>
>1. If INVITE request is followed by CANCEL request by the caller, if CANCEL
>will be formed and sent to network?
>2. If INVITE request is responded by 180 Ringing and the caller then sends
>BYE request, will it be responded with 200 OK or 400 Bad Request or 481
>Transaction Does Not Exist response?
>
>Thanks in advance
>Regards
>Ashutosh
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