"Chris Dent" <(E-Mail Removed)> wrote in message
> Hi Group.
> I am a first-time poster and joined the group a couple of weeks ago,
> primarily because I am keen to gain a good 'executive' understanding of
> the technologies of the modern telecoms market.
> Can anyone please explain how VoIP interracts with the fixed-line
> telephone network? I mean, do VoIP providers need a presence at an
> exchange? How does the call get from the PSTN to the internet and vice
> versa? If I have a geographic number with a VoIP provider do people get
> local rate calls to me from the same area code? If so, do I have to
I am not at all sure I know what an executive understanding is.
I couldn't write a thesis on VoIP, but I can set up SIP phones
ATA's and VoIP PABX's (Asterisk) to do some pretty
....but if I'm honest, I don't know how it all really works!
Its like IT in general, first you do the practical then, if you're
curious, you study the theory.