On Fri, Apr 29, 2011 at 01:04:42AM +0200, Gilles wrote: > On Wed, 27 Apr 2011 14:15:10 +0300, Ashik Ali > <beaasteriskg...@gmail.com> wrote: >> >> Anybody can explain me why asterisk is unable to detect ringback tone from >> PSTN telco ? . > > I guess it was a lot of work, and nobody bothered adding this to the > Zaptel driver.
I know this thread is dead but: I do not believe this should go into the DAHDI kernel modules. The only thing the kernel modules could possibly do if the "ring" tone is detected is queue an event on the channel for Asterisk to decide how to handle. Asterisk / chan_dahdi is already typically monitoring the channel for DTMF digits and looking for additional tones and patterns could be added there. Asterisk would potentially need to have the tonezones of all possible destinations loaded which would make this complex and resource hungry. Cheers, Shaun -- Shaun Ruffell Digium, Inc. | Linux Kernel Developer 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA Check us out at: www.digium.com & www.asterisk.org -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- New to Asterisk? Join us for a live introductory webinar every Thurs: http://www.asterisk.org/hello asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
