[Asterisk-Users] Outgoing DTMF when using BRI & i4l (Eicon Diva) - problems

Jason Williams jason at redskycomputing.co.uk
Tue Jun 15 01:55:10 MST 2004


This is an issues with DTMF clamping, you need to use chan_capi to get DTMF 
working correctly.


Jason
At 18:30 15/06/2004 +1000, you wrote:
>Hello all,
>
>This afternoon I had a BRI line installed by Telstra (our telco in
>Australia). I'm using an Eicon Diva 2.02 PCI ISDN card with the isdn4linux
>driver.
>
>Incoming and outgoing calls with Asterisk work fine (and with no echo - my
>main reason for getting ISDN). However, I can't seem to get outgoing DTMF
>working (incoming works fine).
>
>I made a call from my desk phone (Cisco 7940G) to a POTS(PSTN) phone to test
>and pressed a few buttons - nothing came through.
>
>I know it's not a configuration issue between the phones (confirmed with
>Cisco 7940, Grandstream Budgetone 101 and X-Lite softphone) and Asterisk as
>outbound dtmf works with iax providers and my X100P card.
>
>I came across a similar issue in the archives using the same ISDN card, but
>there was no resolution.
>
>If anybody has any insight it would be greatly appreciated. My modem.conf
>file is at the end of this email if it helps.
>
>Thanks,
>
>Shaun
>
>Begin modem.conf
>
>[interfaces]
>
>context=incoming-isdn
>driver=i4l
>language=en
>type=autodetect
>;This I'm doing directly in the extension.conf
>;stripmsd=1
>
>dialtype=tone
>;dialtype=pulse
>
>;mode=answer
>;mode=ring
>mode=immediate
>
>; ISDN example
>
>group=1
>;registered one number.
>msn=4625xxxx
>;accepting several more. Could have used * as well
>;incomingmsn=57966,57881,57882,57883,57884,57885,57886,57887
>incomingmsn=4625xxxx
>device => /dev/ttyI0
>device => /dev/ttyI1
>
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