On Thursday 04 May 2006 14:01, Michael Milner wrote: > It shouldn't be too difficult to design a daughter board for the USRP to > sample phone line voltage (with an appropriate line interface circuit of > course). After that it should be rather easy in GNURadio to generate DTMF > tones for dialing, and modem tones for data communication.
> Any thoughts? Yeah, just one: 47 CFR Part 68. As in FCC regulations on items that can be connected to the PSTN. A part 68 interface card that could be used to provide an interface to an LFRX/LFTX pair would be ideal. Marcus can elaborate, being that he is employed in that field. -- Lamar Owen Director of Information Technology Pisgah Astronomical Research Institute 1 PARI Drive Rosman, NC 28772 (828)862-5554 www.pari.edu _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio
