asterisk users - Feb 2007 - Problem with busydetect and cell phones

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.

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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Intro*Terms  http://www.NexTag.com

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
> 
> _________________________________________________________________
> Mortgage rates as low as 4.625% - Refinance $150,000 loan for $579 a month.
> Intro*Terms  http://www.NexTag.com
> 
> _______________________________________________
> --Bandwidth and Colocation provided by Easynews.com --
> 
> asterisk-users mailing list
> To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
> 
-- 
               Tzafrir Cohen       
icq#16849755                    jabber:tzafrir@jabber.org
+972-50-7952406           mailto:tzafrir.cohen@xorcom.com       
http://www.xorcom.com  iax:guest@local.xorcom.com/tzafrir

The landlines are with AT&T.  The cell phones I'm testing with are
Cingular
(AT&T subsidiary).

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
>
>_________________________________________________________________
>Mortgage rates as low as 4.625% - Refinance $150,000 loan for $579 a month. 
>Intro*Terms  http://www.NexTag.com
>
>_______________________________________________
>--Bandwidth and Colocation provided by Easynews.com --
>
>asterisk-users mailing list
>To UNSUBSCRIBE or update options visit:
>   http://lists.digium.com/mailman/listinfo/asterisk-users
>
_________________________________________________________________
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>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.
>
The landlines are with AT&T.  The cell phones I'm testing with are
Cingular (AT&T subsidiary).  There must be a subtle difference in the
busy signals.  How can I make it catch busy signals from both carriers?
>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