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2007 Sep 05
1
rxfax() problem - fax signal seems to be ignored
...eue.
[Sep 5 13:43:10] DEBUG[1272] chan_zap.c: Monitor doohicky got event Hook
Transition Complete on channel 1
I have enabled the #define LOG_FAX_AUDIO inside spandsp library, and two
audio files (fax-rx-audio-b7933500-070905134224 and
fax-tx-audio-b7933500-070905134224) appeared in /tmp.
I used Cool96 (an old Win98 free program) to import this audio data (8KHz
mono 16bit PCM-Intel), and it appears that there is currently no fax
synchronisation nor negotiation at all.
All I see in Cool96 is that the fax send its CNG (a 1100Hz tone during
0.5severy 3 seconds), and that Asterisk application app_rxf...