Hi again François, Please keep the conversation in the freeswitch-dev mailing list, unless you want private paid support ;-)
See the answer to your question below ... On Wed, Jan 20, 2010 at 3:57 AM, François Legal <de...@thom.fr.eu.org>wrote: > Do you know if there is a way (except using an oscilloscope to sample the > line signal) to get a dump of the data sent to the card by openzap (is it > samples or something) and vice versa. > > > > What I would like to do is see what is returned to openzap when a call > arrives on an FXO port (CLIP is working in that direction) and compare it to > what is being sent to the card when sending CLIP to and FXS port. > Once the call gets into the computer we're talking about digital audio samples. In a typical configuration a Sangoma board will give you 160 samples of audio each 20ms (most likely encoded in ulaw, that can be verified in /etc/wanpipe/wanpipex.conf for the FXO/FXS board, look at the TDMV_LAW parameter). There is an openzap API command to record the digital audio read from the board, check ZAP_COMMAND_TRACE_INPUT and ZAP_COMMAND_TRACE_OUTPUT. What we currently lack is a FreeSWITCH command in mod_openzap to enable/disable the audio tracing. It should be trivial to hack mod_openzap.c and add that command, if you need help with that ping me on IRC (moy). -- Moises Silva Senior Software Engineer Sangoma Technologies Inc. | 50 McIntosh Drive, Suite 120, Markham ON L3R 9T3 Canada t. 1 905 474 1990 x 128 | e. m...@sangoma.com
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