Hi,
This
is related to INVITE transaction on unreliable transport.
UAC
UAS
------ ------
------------------------------->
INVITE
<------------------------------- 300 Multiple
choices
-------------------------------->
ACK
<------------------------------- 500 Server internal
error (before the Timer D fires)
-------------------------------->
ACK
Suppose the "To-tag" in the second final response (500)
sent by UAS is different than the one in the initial response (300),
1.
how should the UAC behave?
2.
And what should be the value of the "To-Tag" in the ACK sent by UAC for 500
response?
regards,
Rajmohan
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