On 2/13/23 14:35, Peter Beckman via VoiceOps wrote:
On Mon, 13 Feb 2023, Matthew Yaklin via VoiceOps wrote:
What I am seeing is that the DMS was collecting the digits properly before the cutover. Yet our migrated to setup is having trouble. We see missing digits in most cases or other oddities. It does appear the alarm panels are dialing within DTMF specs. Duration of the DTMF is approx 95 ms. A DTMF signal separated by a 150-200 ms pause.
?Can you modify this timing to something longer? Like 250ms tone, 250ms ?space/delay?
Anything greater than 35ms on, 35 ms off typically works, 50 on, 50 off for sure. Won my share of radio station contests back in the day before the PRI guys came along. I agree that auto-ringdown would be something to try unless the alarm panel is too smart for its own good and just sits there waiting for dial tone. -- Jay Hennigan - jay at west.net Network Engineering - CCIE #7880 503 897-8550 - WB6RDV