Wilton Helm wrote: > >The problem is simply the duration is too short (120ms), and the > remote IVR >seems to not detect them > > That sounds like an IVR issue. I've worked on some traditional PABXs > and even designed some DTMF receivers. Any decent DTMF receiver > should be able to reliably decode 80 ms tones, and a really good one > can decode 40 ms. 120 ms should be a very generous duration. I > shipped 80 ms duration to COs 20 years ago. If you shipped detectors requiring an 80ms burst of tone to a telco 20 years ago, they would have sent it back. They have never accepted more than a 50ms minimum tone burst, and many demand detection with just a 40ms tone burst. Demanding >120ms is crazy. People just don't hold down the keys that long. You'd have horrible failure rates.
Regards, Steve _______________________________________________ -- 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
