Enhancing an RPi with phone capabilities
ian at darwinsys.com
Fri Jan 25 14:34:10 CET 2013
On 2013-01-25 8:17 AM, jcommeli at math.leidenuniv.nl wrote:
> Thanks for your replies. I think I have some good pointers here. But, to
> make one thing clear. I am not looking that much for VoIP options, but
> would like to connect to an existing carrier, with a SIM-card.
> The point is that I want other people (without VoIP) being able to call
> this phone. And if I only have VoIP, then they can not give me a call (as
> far as I know).
> Am I missing something?
Well, yes. A VOIP "DID" line, which most people use when they speak of
VOIP (ignoring Skype for the moment) costs $1-$3 a month and has a
regular phone number attached, so yes, people with regular ("POTS")
phones can indeed call it. The other end can be logged into by a
hardware SIP phone, a software SIP or IAX phone, an "ATA" Analog
Terminal Adapter with a regular phone plugged into it, an Asterisk
instance running like a regular "phone system" inside a business or
And people with Skype can now dial regular phone numbers.
Read the intro chapters of "Asterisk: The Future of Telephony" for a
good overview (the book's a bit dated as it talks of Asterisk 1.6 and
1.8 while they're up to 1.11, but all the stuff it covers is still
useful and it's quite readable).
More information about the community