Call files and app_amd (Answering Machine Detection) come to mind. app_amd can take a little time to tune, but you can get it to be pretty reliable in most cases.
See: http://www.voipinfo.org/wiki/index.php?page=Asterisk+cmd+AMD http://www.voipinfo.org/wiki/view/Asterisk+auto-dial+out Matthew Roth InterMedia Marketing Solutions Software Engineer and Systems Developer _______________________________________________ --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