[asterisk-bugs] [Asterisk 0019016]: IAX2 wont start ring back early media

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=19016 
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Reported By:                delphus
Assigned To:                
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Project:                    Asterisk
Issue ID:                   19016
Category:                   Channels/chan_iax2
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.40 
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:             2011-03-24 04:49 CDT
Last Modified:              2011-03-24 05:00 CDT
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Summary:                    IAX2 wont start ring back early media
Description: 
IAX2 channels wont start ring back early media at all.
I've called from IAX2 to SIP local extensions, it doesn't work. From IAX
to IAX local extensions, it doesn't work. From IAX to another SIP/IAX via
IAX trunk (different asterisk servers) and it doesn't work.
I've also fixed all possible codecs and it doesn't work. I've tried
several IAX clients like zoiper, kiax, Loudhush... it doesn't matter. No
ringback at all.