Tag : tone

Starting things off without a Dial Tone

Posted January 16, 2012 by Pavel Espinal & filed under Advanced Dialplan, Asterisk Tips Comments: 0.

Tags: analog phones, astcomments, asterisk, chan, dial tone, dialling tone, extension, handset, handset lifted, sip phone, sound, tone

Is it possible to make Asterisk jump into action and play a sound file as soon as a handset is lifted, instead of providing a Dial Tone and waiting for the user to dial an extension.With analog phones (chan_dahdi) – you just have to set ‘immedi..

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DAHDI Fax Detection and Echo Cancellation

Posted January 3, 2011 by Pavel Espinal & filed under Asterisk Tips Comments: 0.

Tags: asterisk, Cancellers, CNG, CNG tone, cng tones, Dahdi, Digium, Echo, echo cancellation, fax extension, faxdetect, faxdetect=incoming, faxdetect=outgoing, G.168, hardware, hoping that someone, INCOMING, linux, outgoing, time, tone

Is echo cancellation automatically disabled upon recognition of CNG tone? Does faxdetect=incoming sends a call to fax extension when CNG tone is detected? Whats the purpose of faxdetect=ou..

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