[Asterisk-Users] UK Disconnect supervision with TDM400P

Edward Eastman ed at dm3.co.uk
Tue Sep 7 03:34:28 MST 2004


Dan, I get a long single beep that continues for about 20secs and then hangs
up.  I use irc all the time (as Whisk), but don't always remember to connect
to freenode/#asterisk, I'll jump on in the next few days and maybe we can
have a chat about this in some more detail.

Thanks

Ed

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Dan Tucny
Sent: 06 September 2004 18:18
To: Asterisk Users Mailing List - Non-Commercial Discussion
Subject: RE: [Asterisk-Users] UK Disconnect supervision with TDM400P

On Wed, 2004-09-01 at 22:02, Edward Eastman wrote:
> Hi, thanks for the reply, only just got round to having a look at it again
> (annoying how real life gets in the way of the important stuff ;) 
> 
> I've had a go at ramping up the tx/rx gain but it doesn't seem to make any
> difference.  FWIW it's the same with the module in normal fcc mode.
> 
> Does anyone know if bt do normally provide disconnect supervision or
whether
> it has to be done with e.g. busydetect (and can either be detected by the
> tdm400p in uk mode)?
> 
> Thanks
> 
> Ed

> Edward Eastman wrote:
> 
> > 
> > I've got a TDM11B with the fxo port plugged into a standard UK BT PSTN
> line,
> > loading wcfxs with OPERMODE=UK.  All's working well, except if I get an
> > incoming call through my bt line, and the remote party hangs up, I get
> > approx 20secs of the bt line hungup tone before asterisk hangs up, which
> > leads (if nothing else) to the well documented 20secs of beep on vm
> problem
> > :)
> > 
> > I have tried: busydetect=yes / busycount=7 / other busycounts /
> > callprogess=yes but none of these make any difference.  I have
> > loadzone/defaultzone=uk and country=uk in indications.conf and fxs_ks
> > signalling.
> > 
> 
> Try increasing your RX gain in 1db steps, until it reliably hangs up.
> 
> I had a box with X100Ps which busydetected perfectly with default gain 
> settings. When they were replaced with TDM FXOs, busydetect stopped 
> working and I needed 3db of RX gain added to get it working again.
> 
> Regards,
> 
> Richard

Ed,

When someone does hang up on you with your BT line, what do you hear?
Here I get a click/pop following by a 4 second unobtainable tone
followed by a click/pop... The clicks are BT's 'k-break's... It
obviously doesn't seem to be what * expects... Investigating this is
something I'm hoping to have a look at soon, but, if you have time
beforehand....

BTW have you used the IRC channel?

Dan
(dant)

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