At 3/28/2008 12:07, you wrote:

>If we were muting DTMF, we'd have had no idea why he was complaining.

If DTMF mute is on & tones are being muted, they must not be too bad.

One system I maintain has ADMs set to a bit longer than the DTMF detect 
time, & the DTMF mute delay is set to the same time, ~100 milliseconds.  If 
anyone is having DTMF encoding problems, we'll hear it.  Around here, not 
using DTMF muting is just asking for trouble.

Bob NO6B

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