[asterisk-users] Problem with busydetect and cell phones

[Tzafrir Cohen]

On Fri, Feb 16, 2007 at 11:47:02PM -0800, Ryan McDaniel wrote:
> I have a very strange problem I'm hoping someone has encountered already.  
> I've scoured the internet for an answer to this one.  My phone company 
> provides no disconnect supervision.  Hence I'm forced to use the busydetect 
> feature.  I have a TDM400 with two FXO ports.  If I call from an internal 
> extension to a landline and then hangup the landline Asterisk detects the 
> busy signal correctly and clears the line.  If I call from an internal 
> extension to a cell phone and then hangup the cell phone Asterisk will 
> never detect the busy signal though it is clearly there.  Asterisk will 
> happily sit there listening to the busy signal.  I suspect that the busy 
> signal styles are slightly different though it is undetectable to me.  How 
> can I fix this???  It causes severe issues when a call is forwarded to a 
> cell phone via the Zap interfaces as once you hangup the cell phone 
> Asterisk never releases the channel.

To what telco are you connected, BTW?

> 
> zaptel.conf
> loadzone=us
> defaultzone=us
> 
> zapata.conf
> [channels]
> language=en
> 
> ; include zap extensions defined in AMP
> #include zapata_additional.conf
> 
> ; TDM Port #3,4 plugged into PSTN
> ;AMPLABEL:Zap Channel %c
> context=from-zaptel
> signalling=fxs_ks
> usecallerid=yes
> hidecallerid=no
> callwaiting=yes
> callwaitingcallerid=yes
> threewaycalling=yes
> transfer=yes
> canpark=yes
> cancallforward=yes
> callreturn=yes
> echocancel=yes
> echocancelwhenbridged=no
> echotraining=yes
> rxgain=0.0
> txgain=0.0
> immediate=no
> busydetect=yes
> busycount=4
> ;busypattern=500,500
> ;answeronpolarityswitch=yes
> ;hanguponpolarityswitch=yes
> ;callprogress=yes
> ;progzone=us
> channel => 3-4
> 
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-- 
               Tzafrir Cohen       
icq#16849755                    jabber:tzafrir at jabber.org
+972-50-7952406           mailto:tzafrir.cohen at xorcom.com       
http://www.xorcom.com  iax:guest at local.xorcom.com/tzafrir