[Asterisk-Users] TDM01B answering issue

[chawki hammoud]

Hi:
I saw a hardware in  callshops that attached to  
analoge line and begin counting from the time call is
answered to the time it hangup ,So is there     
ant hardware or a software added to asterisk to solve
this answering issue?

--- Steve Underwood <steveu at coppice.org> wrote:

> Andrew Kohlsmith wrote:
> 
> >On Saturday 17 December 2005 22:13, Eric
> "ManxPower" Wieling wrote:
> >  
> >
> >>*sigh*  Analog Zap FXO ports consider the call
> "answered" as soon as
> >>it's finished throwing the DTMF at the telco. 
> This is because a Zap
> >>port CAN'T tell when an analog call has been
> answered.
> >>    
> >>
> >
> >Bah, you're absolutely correct.  I keep forgetting
> about POTS; I think PRI 
> >when I think Zap.
> >  
> >
> Its not absolutely correct, but its relatively
> correct. :-)
> 
> The above is true for most analogue lines around the
> world. However, 
> there are some places which provide a positive
> answer indication on 
> analogue lines. The form varies, but it is typically
> a reversal of line 
> power, or a short timed break in line power.
> Similarly, while most of 
> the world's analogue lines no longer provide a
> positive indication of 
> hangup, some still do. Again, this is usually by
> reversal or a short 
> timed break.
> 
> Steve
> 
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