For what channel driver, and what use case? It's my understanding that in the traditional telephone network (ISDN/SS7/analog), prior to a call being answered, you were not necessarily guaranteed a two way media path. Sometimes it was available (there are few stories of large companies who somehow talked their telco provider into allowing it so users could traverse their IVR prior to a billable answer) but I don't *think* it's guaranteed.
>From a SIP standpoint, there are many ways it could not work as well, depending on the type of DTMF being sent. If you're using inband DTMF of any sort (audio inband or RFC2833-ish) if you don't have a bidirectional media path established through NATs and such, you could miss digits as well. Matthew Fredrickson On Sun, Nov 8, 2015 at 3:50 PM, hadi <[email protected]> wrote: > > Hi, > > > How to accept DMTF tone during ringing mode? Its possible. > > Regards > > -Hadi.Salem > > > > -- > _____________________________________________________________________ > -- 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 > -- Matthew Fredrickson Digium, Inc. | Senior Software Developer 445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
-- _____________________________________________________________________ -- 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
