On Mar 19, 2009, at 4:34 PM, drew einhorn wrote: > This sort of message is usually preceded by some magic tones that > allow direct marketing application to immediately drop a call to a > dead phone number. > > What is the proper terminology for the tones? > > Where can I find information about how this is implemented? > > -- > Drew Einhorn
As noted previously, they're "Special Information Tones" and you can create your own with the "PlayTones" function in Asterisk if they're not already specified in indications.conf (many large country settings already exist). Here are the frequency specifications for the ones in North America: http://en.wikipedia.org/wiki/Special_information_tone and for the rest of the world: http://www.3amsystems.com/wireline/tone-search.htm?start=0&kTone=40 JT --- John Todd email:[email protected] Digium, Inc. | Asterisk Open Source Community Director 445 Jan Davis Drive NW - Huntsville AL 35806 - USA direct: +1-256-428-6083 http://www.digium.com/ _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
