[asterisk-bugs] [Asterisk 0018438]: Ealry media is lost on accepted calls (with open r2 support, Elastix 2 flavor)

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18438 
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Reported By:                mariner7
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18438
Category:                   Channels/chan_dahdi
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.6.2.11 
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:             2010-12-08 12:33 CST
Last Modified:              2010-12-10 12:36 CST
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Summary:                    Ealry media is lost on accepted calls (with open r2
support, Elastix 2 flavor)
Description: 
This seems to be a bug in R2 chan_dahdi support.

The problem is that the audio that you hear during the voicemail prompt
("Por favor deje su mensaje ... blah blah"), is sent as "early media". In
MFC-R2 there is really no signal to notify whether inband information is
available, the call is just accepted. I am unsure if typically all telcos
provide alerting information, the R2 support in Asterisk has been working
without major complains for a while, so I don't want to break backwards
compatibility by adding inband media to all calls.

To fix this I think a new configuration is needed, something like
mfcr2_media_on_accept=yes or something along those lines. This would mean
when the call is accepted (but not answered) media will be passed through
instead of waiting for the answer signal. That should fix the problem with
voicemail in the telco.

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 (0129540) moy (reporter) - 2010-12-10 12:36
 https://issues.asterisk.org/view.php?id=18438#c129540 
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This should be assigned to me. Any bugmarshals around?

I need to check if chan_dahdi.conf has already some option for early
media, and I am even tempted to always pass-thru media after the call is
accepted, from the ITU spec seems that is the proper behavior. 

Issue History 
Date Modified    Username       Field                    Change               
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2010-12-10 12:36 moy            Note Added: 0129540                          
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