[Asterisk-Users] Outgoing call answer confirmation

[Martin Pycko]

The callprogress algorithm is trying to detect certain tones (freqs) in
the receive channel to guess that it's ringback now, and now we're
connected or we have hangup. It uses groetzel algorithm optimized for US
tones (check dsp.c)

regards
Martin

On Tue, 2 Sep 2003 wasim at convergence.com.pk wrote:

> On Wed, 3 Sep 2003, Martin Pycko wrote:
>
> > If you're in US try to use callprogress=yes in zapata.conf. The problem
> > with analog channels is that we assume blindly that after the number has
> > been dialed the call is answered. Unless you use some progress detection
> > algorithm that works for you. So try callprogress=yes.
>
> Martin, i know you're busy but can you give us 2 minute explanation on why
> this'll only work in the US, and not other countries, and what is the
> criterea to qualify for callprogress. Also, what can we do to help more
> countried be workable under this.
>
> --
> Mirza Wasim Baig | Principal Consultant | Convergence Business Systems PK
> #48, St 32, Sector F-6/1, Islamabad, Pakistan 44000 | US: +1(800)460-1446
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