[Asterisk-Users] Re: Newby question. Basic structure

Tony Mountifield tony at softins.clara.co.uk
Tue Sep 7 00:49:12 MST 2004


In article <413CCB2E.6050102 at fnords.org>, Eric Wieling <eric at fnords.org> wrote:
> Tony Mountifield wrote:
> 
> > In article <413CC320.7050500 at fnords.org>, Eric Wieling <eric at fnords.org> wrote:
> > 
> >>Rodolfo Grave wrote:
> >>
> >>
> >>>Can you explain further what a FXS and FXO port represents in a call 
> >>>process in general?
> >>
> >>FXO port - Expects to RECEIVE dialtone and ring voltage
> >>FXS port - Expects to PROVIDE dialtone and ring voltage
> > 
> > 
> > Or in other words, an FXO port connects to an analogue PSTN line,
> > and an FXS port connects to an analogue telephone.
> 
> And FXS port can also connect to an analog CO port of your PBX.  An 
> FXO port could connect to an analog extension on your PBX too. 
> Thinking of PSTN lines and telephones can limit the thinking of a 
> newbie to just PSTN lines and analog phones.  There are MANY ways you 
> can use FXS and FXO ports to connect devices togather.

Yes, you're right, of course. I was just describing in simplified terms.
In each case you can add "or something that behaves as a ...".

Cheers
Tony
-- 
Tony Mountifield
Work: tony at softins.co.uk - http://www.softins.co.uk
Play: tony at mountifield.org - http://tony.mountifield.org



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