On Tue, 2008-06-24 at 05:54 -0400, Al Baker wrote: > How do other applications, such a the automated dialers from telemarketers, > reliably detect when the call has been "answered" ? > I thought this sort of basic functionality that had been around for > quite awhile.
For digital connections (such as a PRI on a T1 or E1), the telco sends a signal when the far end has answered the call. For analog lines (at least here in the United States), however, there is typically no signaling from the telco to let you know when the far end has answered the call. The best you can do is to try to listen to the audio and use audio characteristics to try to determine if it was answered. -- Jared Smith Training Manager Digium, Inc. _______________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- AstriCon 2008 - September 22 - 25 Phoenix, Arizona Register Now: http://www.astricon.net asterisk-users mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
