[asterisk-bugs] [Asterisk 0011421]: MeetMe conferences don't forward DTMF from SIP clients

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=11421 
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Reported By:                michael-fig
Assigned To:                
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Project:                    Asterisk
Issue ID:                   11421
Category:                   Applications/app_meetme
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.14  
SVN Branch (only for SVN checkouts, not tarball releases): N/A  
SVN Revision (number only!):  
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             11-29-2007 16:32 CST
Last Modified:              12-17-2007 11:40 CST
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Summary:                    MeetMe conferences don't forward DTMF from SIP
clients
Description: 
I'm using a MeetMe conference to connect an outbound call (over either SIP
or a Zap channel) with a SIP internal agent.  I've turned on DTMF
forwarding for both users, but when I hit DTMF on any SIP client, it isn't
forwarded to the other end (the background noise is interrupted for dead
air for the duration of the keypress).

The reason I marked this as "major" is that my internal agents cannot
navigate voice menus on the outbound call, which is a big problem for us,
since many of the businesses we call have voice menus.
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---------------------------------------------------------------------- 
 michael-fig - 12-17-07 11:40  
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Yes, this was still a problem, but I found out what was causing it and
worked around it.  The problem is that our SIP phones were only sending
AST_FRAME_DTMF_END, not AST_FRAME_DTMF_BEGIN for their DTMF events.

The attached patch has a workaround (but it's probably not ideal) that
made app_meetme forge an AST_FRAME_DTMF_BEGIN frame if the end frame was
sent without a corresponding begin.  It works for me just fine. 

Issue History 
Date Modified   Username       Field                    Change               
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12-17-07 11:40  michael-fig    Note Added: 0075576                          
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