[reSIProcate] prack sent in response to provisional even if prack support is disabled
Hi,
Prack support is not enabled (did not enable it in the master profile), but
the following scenario causes resip/dum to send a prack to a 183:
DUM (UAC) UAS
1) INVITE ->(does not contain Supported: 100rel)
2) 183 (contains Supported: 100rel) <-
3) PRACK (RAck: 0 0 UNKNOWN)->
.
The UAS fails on the PRACK. Is resip/dum behaving correctly? How would
this behavior be changed to not send the PRACK? InviteSession::isReliable
only checks the profile if the message is a request to determine if prack is
supported. This probably assumes that if a response contains the Supported:
100rel, then the Supported: 100rel must have been sent in the initial
INVITE?
Thanks,
-Justin
1)
INVITE sip:13101234567@xxxxxxxxxxxx:5060 SIP/2.0
Via: SIP/2.0/UDP
192.168.2.31:5060;branch=z9hG4bK-d8754z-c93595140268b620-1---d8754z-;rport
Max-Forwards: 70
Contact: <sip:6@xxxxxxxxxxxx:5060>
To: <sip:13101234567@xxxxxxxxxxxx:5060>
From: "0309"<sip:6@xxxxxxxxxxxx>;tag=1c0b8f57
Call-ID: 00075027-b9dd0026-14e75433-73d133a6@xxxxxxxxxxxxx
CSeq: 1 INVITE
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, INFO, NOTIFY, REGISTER
2)
SIP/2.0 183 Ringing
Via: SIP/2.0/UDP
192.168.2.31:5060;branch=z9hG4bK-d8754z-c93595140268b620-1---d8754z-;rport
From: "0309"<sip:6@xxxxxxxxxxxx>;tag=1c0b8f57
To: <sip:13101234567@xxxxxxxxxxxx:5060>;tag=6608SIPpTag0171
Call-ID: 00075027-b9dd0026-14e75433-73d133a6@xxxxxxxxxxxxx
CSeq: 1 INVITE
Supported: 100rel
Contact: <sip:192.168.2.41:5060;transport=UDP>
3)
PRACK sip:192.168.2.41:5060;transport=UDP SIP/2.0
Via: SIP/2.0/UDP
192.168.2.31:5060;branch=z9hG4bK-d8754z-d74a3f6e45648638-1---d8754z-;rport
Max-Forwards: 70
Contact: <sip:6@xxxxxxxxxxxx:5060>
To: <sip:13101234567@xxxxxxxxxxxx:5060>;tag=6608SIPpTag0171
From: "0309"<sip:6@xxxxxxxxxxxx>;tag=1c0b8f57
Call-ID: 00075027-b9dd0026-14e75433-73d133a6@xxxxxxxxxxxxx
CSeq: 2 PRACK
RAck: 0 0 UNKNOWN
Content-Length: 0