Forum: GNU Radio Re: VoIP and gnuradio

Whenever VOIP and GPL'ed software are mentioned I always think of 
asterisk. It's safe to say that asterisk has a history that is as 
interesting and as long as that of GNU Radio :-). (Another buzzword to 
keep an eye on in this area BTW is "ROIP").

Anyway asterisk (in addition to being the GPL swiss army knife for VOIP) 
has very highly articulated two-way radio and radio repeater module 
which is known as app_rpt - their project page ("The fusion of 2-way 
radio systems and VOIP") is at
 http://ohnosec.org/drupal/.

While the focus of app_rpt historically has been on analog (NBFM) radios 
transmitting and receiving on discrete frequencies, our project (op25) 
offers a plugin channel driver to extend a bridge between the 
asterisk/app_rpt/VOIP world and GNU Radio. When using the USRP hardware 
it aims to support a fully generic, multi-channel, FDX two-way radio 
infrastructure with a specific focus on P25. We're always looking for 
experimenters and amateurs who are interested in these technologies... 
Project pages are
 http://op25.osmocom.org/trac/wiki
 http://op25.osmocom.org/trac/wiki.png/wiki/RepeaterPage

Lots of work still to do (of course), including all the new goodies 
Jonathan Corgan has been mentioning that are in the GR pipeline for 
dealing with packet-oriented datacomm protocols...


Best Regards

Max