DTMF noise

Roy Sigurd Karlsbakk (roy@karlsbakk.net)
Tue, 7 Jan 2003 14:55:32 +0100

hi

when dialing out from the D-link MGCP phone (they actually work now - most of
the time), I get lots of DTMF noise whenever the other person talks. I only
get this from the MGCP phone - not with MSN messenger. This seems to be an
error in isdn4linux falsely detecting DTMF in speech with Asterisk creating
the actual noise.

This testing has been done on hhe following cards (from lspci)

02:09.0 Network controller: Cologne Chip Designs GmbH ISDN network controller
[HFC-PCI] (rev 02)
02:0a.0 Network controller: Cologne Chip Designs GmbH ISDN network controller
[HFC-PCI] (rev 02)
02:0b.0 Network controller: Cologne Chip Designs GmbH ISDN network controller
[HFC-PCI] (rev 02)

roy

-- 
Roy Sigurd Karlsbakk, Datavaktmester
ProntoTV AS - http://www.pronto.tv/
Tel: +47 9801 3356


Computers are like air conditioners.
They stop working when you open Windows.


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