Aha! On Nov 19, 2004, at 3:42 AM, Rennes Neps wrote:
Hello!
You can try playing with dtmf settings in sip.conf For example all Grandstream phones in my box use dtmfmode=info and Snom phones use dtmfmode=rfc2833
I got the same behaviour with snom's when dtmfmode was wrong. Hope it helps.
This wasn't the whole answer, but, as is usually the case, it was the thread that I tugged at and unraveled into a solution.
I respond to the list only to archive this for future fiddlers with soft-phones.
Apparently X-Lite is one of the few DTMF soft-phones available, and they've been actively working on RFC2833 support. This is the default configuration.
To restate, I'm using Asterisk + X-Lite on MacOSX.
I found, deep in the advanced settings-->Feature Settings (different location than in the windows X-Lite client) the DTFM configuration toggles.
I started by switching it to do in-band.
That partially solved the problem, but ethereal traces were still showing a few extra (hit-n-miss) digits going at Asterisk, which caused VoiceMail to not find user/pass matches.
I then toggled DTMF Tone Length to half the default value (2800 --> 1400) and viola, things seem happy, consistently.
As it turns out, if you turn in-band off, and let it revert bck to RFC2833, the reduction in DTMF Tone Length seems to solve the problem.
Thanks!
Joe -- Joe Hetrick: joe-tech(at)avalon.net Systems Engineer Avalon Networks Inc. Avalon Networks: Your Dialup & DSL provider!
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