[asterisk-bugs] [Asterisk 0018058]: SIP session timers do not transmit session expiry or refresher timer in 200 OK

[Asterisk Bug Tracker]

The following issue has been ASSIGNED. 
====================================================================== 
https://issues.asterisk.org/view.php?id=18058 
====================================================================== 
Reported By:                legranjl
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   18058
Category:                   Channels/chan_sip/Interoperability
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Asterisk Version:           SVN 
JIRA:                       SWP-2307 
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2010-09-27 00:34 CDT
Last Modified:              2010-10-13 12:09 CDT
====================================================================== 
Summary:                    SIP session timers do not transmit session expiry or
refresher timer in 200 OK
Description: 
When acting as uac the 200ok replay to uas does not include the sessoin
expiry and refresher timer. This turns the timer off.

RFC4028, chapter 7.2:
   "If the 2xx response did not contain a Session-Expires header field,
   there is no session expiration.  In this case, no refreshes need to
   be sent.  A 2xx without a Session-Expires can come for both initial
   and subsequent session refresh requests.  This means that the session
   timer can be 'turned-off' in mid dialog by receiving a response
   without a Session-Expires header field.


====================================================================== 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2010-10-13 12:09 dvossel        Assigned To              dvossel =>          
======================================================================