On 06/23/2011 09:12 AM, Sawan Vithlani wrote:
Hello all,I am using call files to dial out to a set of PSTN numbers. The calls are going out fine and being handled correctly by the dial plan. The problem occurs when I accidentally call a fax machine. I would expect the dial plan to pick this up and jump to the "fax" extension in the current context. This is not happening. In the call file I send the call out via Dial(DAHDI/g0/XXXXXXXX) and then it goes to my dial plan context: [SendCall] exten => start,1,Answer() same => n, Wait(5) same => n, ..... ;; do some more stuff exten => fax,1,Verbose(got a Fax on ${EXTEN}) same =>n, Hangup() ;;;; I do get a message on the CLI telling me "Channel 63 detected a CED tone from the network" but still no jumping to the fax extension. This is while dialplan is in the Wait(5). CLI> core show version Asterisk 1.8.4.1-1digium1~natty built by pbuilder @ nighthawk on a x86_64 running Linux on 2011-05-23 22:05:17 UTC ISDN lines connected via Digium TE412P card. I have "faxdetect = both" in chan_dahdi.conf in the general section as well as specifically for the configured spans.
'faxdetect' is for detecting *calling* FAX machines, not *called* FAX machines. It listens for the CNG tone generated by a (non-V.34) calling FAX terminal.
If you are wanting to detect that a number you have dialed is being answered by a FAX machine, there are applications available (but not included with Asterisk) to do that. I believe NVFaxDetect can do it, and most of the add-on answering machine detection applications can do it as well.
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