Hi, I need an urgent clarification on the followings set of call.I have observed the following scenario on the real network and it confuses me when i see the two INVITES having same TO,FROM,CSEQ,CALLID (but different VIA) in opposite direction :
I am trying to give the scenario below :
|Time | 1.1.1.1 | 2.2.2.2 |
|0.000 | INVITE | |SIP
From: sip:[EMAIL PROTECTED]
To:sip:[EMAIL PROTECTED]
| |(5060) ------------------> (5060) |
|0.000 | 100 Trying| |SIP
Status
| |(5060) <------------------ (5060) |
|0.000 | INVITE | |SIP
Request
| |(5060) <------------------ (5060) |
|0.000 | 100 Trying| |SIP
Status
| |(5060) ------------------> (5060) |
|0.000 | 180 Ringing |SIP
Status
| |(5060) ------------------> (5060) |
|0.000 | 200 OK | |SIP
Status
| |(5060) ------------------> (5060) |
|0.000 | ACK | |SIP
Request
| |(5060) ------------------> (5060) |
|0.000 | ACK | |SIP
Request
| |(5060) <------------------ (5060) |
|0.000 | BYE | |SIP
Request
| |(5060) ------------------> (5060) |
|0.000 | BYE | |SIP
Request
| |(5060) <------------------ (5060) |
|0.000 | 200 OK | |SIP
Status
| |(5060) ------------------> (5060) |
I am not sure whether the figure would be that clear
or not .Here I am mentioning the first 3 SIP messages
Please see the attachment for more description.
Regards
Atul
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SIP_INVITE.doc
Description: 3092052022-SIP_INVITE.doc
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