[asterisk-bugs] [Asterisk 0018809]: ACK is ignored upon call-pickup with sendrpid=yes

[Asterisk Bug Tracker]

The following issue has been SUBMITTED. 
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https://issues.asterisk.org/view.php?id=18809 
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Reported By:                kenny
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18809
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.8.2.3 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2011-02-14 13:32 CST
Last Modified:              2011-02-14 13:32 CST
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Summary:                    ACK is ignored upon call-pickup with sendrpid=yes
Description: 
Asterisk seems to ignore (can't match) ACK for 200+SDP message after SIP
UPDATE with RPID is sent to phone.

Scenario:
1 - A calls to B
2 - C dials *8 to pickup call ringing on B
3 - Asterisk sends 200+SDP to C (which is confirmed by ACK)
4 - Asterisk sends CANCEL to B (which is confirmed by 487 request
terminated)
5 - Asterisk sends 200+SDP and UPDATE to A
6 - now the call is connected and RTP stream is OK in both directions
7 - A confirms UPDATE with 200 message and then confirms 200+SDP with ACK
8 - however Asterisk keep sending 200+SDP 
9 - until SIP timer expires and Asterisk hangup channel without notifying
A (it only sends BYE to C)

Asterisk hangup channel with messages:
Retransmission timeout reached on transmission callid at ip for seqno 102
(Critical Response) -- See doc/sip-retransmit.txt.
Hanging up call callid at ip - no reply to our critical packet (see
doc/sip-retransmit.txt).

In case RPID feature is disabled (sendrpid=no) then ACK is matched
properly.
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Issue History 
Date Modified    Username       Field                    Change               
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2011-02-14 13:32 kenny          New Issue                                    
2011-02-14 13:32 kenny          Asterisk Version          => 1.8.2.3         
2011-02-14 13:32 kenny          Regression                => No              
2011-02-14 13:32 kenny          SVN Branch (only for SVN checkouts, not tarball
releases) => N/A             
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