[asterisk-bugs] [Asterisk 0014315]: After Dial's L() limit is reached, res_feature's dynamic features don't work

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14315 
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Reported By:                tim_ringenbach
Assigned To:                
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Project:                    Asterisk
Issue ID:                   14315
Category:                   Core/Channels
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     new
Asterisk Version:           1.4.23 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-01-22 15:20 CST
Last Modified:              2009-01-23 20:57 CST
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Summary:                    After Dial's L() limit is reached, res_feature's
dynamic features don't work
Description: 
There's a problem with channel.c's ast_channel_bridge and how the limit
functionality is implemented. 

We have a dynamic feature from res_features set to happen when the user
hits star. (It calls an AGI and does an IVR to let a user add money to
their account.)

We use the L option to add dial to limit the call and play a warning when
the limit is low.

After the limit is reached, however, hitting star repeats the warning
instead of actually activating the feature.  This is a problem of us
because the warning message says to hit star, but now hitting star replays
the message.

The reason for this is that hitting the key sends you back into the for
(/*ever/*) loop in channels.c, and the if statement on line 4160 is still
true, so it plays the warning again instead of processing the dtmf. 

Since we weren't doing replays on the warning, we patched asterisk to set
config->play_warning to 0 in the else block of the "if
(config->warning_freq && (time_left_ms > (config->warning_freq + 5000)))"
line. However, that's not a generic solution.
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---------------------------------------------------------------------- 
 (0098642) rgollent (reporter) - 2009-01-23 20:57
 http://bugs.digium.com/view.php?id=14315#c98642 
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Note another problem here: even with the above patch, no feature can be
activated *while* the warning sound is playing, only after. Should this be
considered as a separate issue (and have a ticket filed), or part of the
same problem? 

Issue History 
Date Modified    Username       Field                    Change               
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2009-01-23 20:57 rgollent       Note Added: 0098642                          
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