[asterisk-users] Hang up detection with TDM400P and Telewest/Virgin Media line

[Luis Morales]

Mike,

Can you tell us :

- asterisk version
- zaptel version

When you call over this line, when you hangup did you hear an busy
tone ? or any class tone ? To do this test connect your lines to
analog phone and make a call. Let's us know the results.

Regards,

Luis Morales

On Fri, Oct 10, 2008 at 4:48 AM, Mike <mike at derbywireless.net> wrote:
> Folks,
>
> I've seen a few reports that people have had problems with hang up
> detection on UK cable phone lines.  I have a TDM400P with two FXO ports,
> one connected to my BT line and the other connected to my
> Telewest/Virgin Media cable line.  If I ring the BT line and then clear
> down, Asterisk detects this and acts accordingly.  If I ring the
> Telewest line, the clear down is not detected, hence Asterisk continues
> to ring extentions, record voicemail, etc.
>
> I've seen a few posts reporting this issue with the UK cable system but
> these are generally not resolved.
>
> Has anyone sucessfully configured a UK Telewest line with Astersik?
> Does anyone know how Telewest signals that the remote caller has cleared
> down?
>
> On the same topic, how does BT signal remote clear down?
>
> I have plugged a phone into the Telewest line and it doesn't appear to
> receive a tone on clear down, nor does it appear to drop power on the
> line.  Just in case, I changed the DCT in zaptel.h from 500ms to 100ms and
> recompiled, however, this did not resolve the issue.
>
> I'm working blind at the moment as I cannot find anything which
> documents what to expect the Telewest line to do to signal a remote
> clear down occured.  I've played around with the kewlstart and
> loop-start setting but without knowing what the line is going to do,
> it's difficult to know how to configure Asterisk.
>
> Does anyone have any experience of Telewest?
>
> Thanks,
> Mike.
>
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-- 
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Luis Morales
Consultor de Tecnologia
Cel: +(58)416-4242091
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"Empieza por hacer lo necesario, luego lo que es posible... y de
pronto estarás haciendo lo imposible"

Leonardo Da'Vinci
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