[Asterisk-Users] X100P and NTL (ex Cable + Wireless)

[Steve Underwood]

Stephen Davies wrote:

>Hi Alex,
>
>Indeed the call end termination doesn't work on an NTL line.  I'm not
>so sure it works too well on other lines either.
>
>I did some work a while back to add detection of the UK busy/hangup
>signal on the line, but I never got it working well enough to depend
>on it.  The problem is that it is a single frequency tone.  (The US
>one is dual-tone).  Women's voices used to sometimes trigger my
>detector - causing hangups.
>
>The main practical issue is with voicemail, as you say.
>
>My final solution was to switch to ISDN.
>
>Steve
>  
>
If you look for the cadence as well as the tone, and look over a couple 
of cycles before deciding it should be robust.

Regards,
Steve