[asterisk-bugs] [Asterisk 0018228]: SIP 180 Sent from provider, Asterisk sends 180 and 183 w/SDP. No ringback on calls

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18228 
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Reported By:                Kenneth Myers
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18228
Category:                   Channels/chan_sip/General
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.4.36 
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:             2010-10-28 17:02 CDT
Last Modified:              2010-11-04 06:30 CDT
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Summary:                    SIP 180 Sent from provider, Asterisk sends 180 and
183 w/SDP. No ringback on calls
Description: 
When calling through a provider, the provider sends 180 to asterisk, and
asterisk sends 180 followed by 183 w/sdp to the phone. The caller hears no
ringback. See attached screenshots
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 (0128605) davidw (reporter) - 2010-11-04 06:30
 https://issues.asterisk.org/view.php?id=18228#c128605 
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Re comment %128510 we reproduced the no ringback symptom using a skinny
phone directly on CUCM with no Asterisk invovlement.  Pending traces of the
downstream side for the original reporter, I can't say whether that is
relevant here, or not. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-11-04 06:30 davidw         Note Added: 0128605                          
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