[asterisk-bugs] [Asterisk 0011955]: Fast RFC2833 dialing results in asterisk generating overlapping

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=11955 
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Reported By:                tsearle
Assigned To:                
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Project:                    Asterisk
Issue ID:                   11955
Category:                   Core/Channels
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.17 
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:             02-08-2008 02:51 CST
Last Modified:              02-11-2008 09:07 CST
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Summary:                    Fast RFC2833 dialing results in asterisk generating
overlapping
Description: 
Scenario: call established between 2 rfc2833 endpoints but no packet 2
packet bridge.

If the calling party sends digits really fast (less than the min gap of 45
milliseconds).  Asterisk will attempt to slow down the dialing through dtmf
emulation.  

When this occurs, it is possible that the next digit arrives while the
previous digit is still being emulated by asterisk.  Currently asterisk
doesn't check to see if a dtmf is currently being emulating before
forwarding the start frame of the next dtmf.

This patch adds a check so that if the previous digit is still being
played the start frame will not be forwarded (the end frame will be
enqueued for emulation).


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---------------------------------------------------------------------- 
 tsearle - 02-11-08 09:07  
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I'm sorry I don't want to step on anybody else's feet.  The patch in 11740
does indeed propose the same solution.  However, 11740 contains many other
issues, not directly related to this issue.  I'm separating this issue so
as it is not blocked by the other issues the ticket is trying to address. 

Issue History 
Date Modified   Username       Field                    Change               
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02-11-08 09:07  tsearle        Note Added: 0082007                          
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