The H0,H1 timing may be tricky, but, If the modem is AT compliant, ATD! is the flash command. The timing is based on S register 29.

----- Original Message ----- From: "Raoul Bönisch" <[EMAIL PROTECTED]>
To: <asterisk-users@lists.digium.com>
Sent: Monday, March 14, 2005 10:50 AM
Subject: [Asterisk-Users] How to flash a modem line



* Mateo Meier <[EMAIL PROTECTED]> [2005-02-28 09:13]:
I tryed that with capi.. but no luke. It will hang up the line anyway :-(

exten => s,1,Playback(transfer)
exten => s,2,Flash(capi/72044**:041720****,18)
exten => s,3,SendDTMF(${ARG1})
exten => s,4,Hangup()

Any idears why ?

No wonder! The Flash() application can flash zap channels only and you are trying to flash a modem channel. There's no obvious facility to flash a modem channel as I can find nothing about it in chan_modem.c. :-\

I want to do the same thing and I am using ISDN4Linux. Perhaps we
can try submit AT-commands to the modem line. A timed H0 and H1
command would do the thing. I'm afraid we'd have to change the
asterisk source code though. It would even work with CAPI as you
can use ISDN4Linux on top of CAPI, too.

Please tell me if you find any solutions :-)

Greets!

Raoul

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