[Asterisk-Dev] ZAPTEL driver questions - loop start hangup

[Tzafrir Cohen]

On Tue, May 03, 2005 at 03:11:24PM -0500, Jeffrey C. Ollie wrote:
> On Tue, 2005-05-03 at 12:44 -0400, Matthew Butt wrote:
> > Hi all,
> > 
> > I'm trying to get UK BT Featurelines running with X100P cards.  BT tell
> > me that they're running Loopstart but without disconnect supervision.
> > When a caller hangs up BT don't send any kind of busy/dial tone so
> > there's no audible way of telling that a call has finished.
> > 
> > With the zap drivers running fxs_ls in debug mode I can see NO BATTERY
> > then BATTERY (is this called a debounce?) when the caller hangs up but:
> 
> Well, it looks like BT lied to you.  The loss of battery voltage is
> disconnect supervision.  Change the Zaptel drivers and Asterisk to use
> kewlstart signaling, which is loopstart plus disconnect supervision.

Which telcos use loopstart?

-- 
Tzafrir Cohen     icq#16849755  +972-50-7952406
tzafrir.cohen at xorcom.com  http://www.xorcom.com