[asterisk-bugs] [Asterisk 0011354]: Can not change Call-Waiting tone duration and frequency

[noreply at bugs.digium.com]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=11354 
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Reported By:                cahen
Assigned To:                
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Project:                    Asterisk
Issue ID:                   11354
Category:                   Channels/chan_zap
Reproducibility:            always
Severity:                   minor
Priority:                   normal
Status:                     confirmed
Asterisk Version:           1.4.15  
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:             11-22-2007 20:09 CST
Last Modified:              04-02-2008 17:37 CDT
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Summary:                    Can not change Call-Waiting tone duration and
frequency
Description: 
Our users reports that the call-waiting tone on analog phones connected to
Zaptel hardware (TDM400 & TDM2400) is too disturbing.
I tryed to change it's duration in indications.conf AND in zonedata.c
(recompiled, etc...), but it doesn't change anything (changing other tones,
ie dialtone works fine!).
Basically, whatever is configured in those 2 files, the CWT is 300ms long
at 440Hz, and is repeated every 3 or 4 seconds! (it seems that a CWT is
emitted at the beginning of each ring-back tone sent to the caller)

Another issue is that when a call is bridged between 2 local extensions,
both parties hear the CWT, so no one knows who is concerned
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---------------------------------------------------------------------- 
 qwell - 04-02-08 17:37  
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So, I looked into this, and I think I have a good understanding of why this
happens.

For the actual call wait tone, it's a 440Hz tone for 300ms.  If you have
callwaitingcallerid enabled, you also get 2750Hz and 2130Hz tones while
that's playing.

Is it possibly those higher tones that the users are complaining about? 

Issue History 
Date Modified   Username       Field                    Change               
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04-02-08 17:37  qwell          Note Added: 0084966                          
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