Hello,
I'm back on this. I could take samples of what is sent by my carrier as CLIP and what is sent by my FXS port as CLIP, and this is very different. The modulation to be sent out of FXS seem to be correctly built, but this seem to never get out. By further checking what could happen, I could see that for FSK/DTMF/... the data is written to some dedicated buffer (fsk_buffer/...) using the zap_buffer_write function. I continued to see what was done with this fsk_buffer, and surprisingly, it seems that nothing is done. I could find the beginning of something in ozmod_analog.c. these lines commented out : if ((zchan->dtmf_buffer && zap_buffer_inuse(zchan->dtmf_buffer)) || (zchan->fsk_buffer & //memset(frame, 0, len); //zap_channel_write(zchan, frame, sizeof(frame), continue; } so that seem to be related to fsk_buffer (by the way sending dtmf tones out of FXS does not seem to work either, tried with send_dtmf application in diaplan), but I don't really get what would be done here (if uncommented) except sending null values to that function, which would (I found this function in zap_io.c) lead to doing nothing as this function verifies the condition zchan->fsk_buffer & padding-left: 5px; margin-left: 5px; width: 100%;"> On Jan 27, 2010, at 3:48 AM, François Legal wrote: So I did modify mod_openzap to provide the od trace command to the cli. I started trying to parse the incoming clip, but I have to do it again as the incoming signal is saturated so I can't see anything interesting. I'll post my results whenever I get something. Shall I send the modified mod_openzap.c to the list ? We should get a bug opened on this issue on http://jira.freeswitch.org [1] About the difference on the modulation settings for CLIP, could anybody suggest some way to have it configurable by files ? We should add some config option based on country or CLIP type to specify this. Lets get it working and we can think how to configure once we have that. Mike Links: ------ [1] http://jira.freeswitch.org
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