[Asterisk-Users] inbound isdn call

[Iain Stevenson]

--On Thursday, February 27, 2003 1:54 pm +0100 Marian Danisek 
<majo at sunteq.sk> wrote:

> this mean that i need 2 different patches ? I already found isdn_audio.c
> and isdn_audio.h patch... this is for i4l. You meat that i need another
> patch for asterisk ?
>

If you want asterisk to handle dtmf then you need Pauline Middelink's dsp 
patch - isdn-dsp.txt - which was posted to the list in January.  This patch 
allows asterisk's dsp routines - the same ones used for the zaptel 
interfaces - to provide dtmf support for the ISDN line.  Without it, you 
will have no dtmf support if you apply the isdn-audio.c patch.

  Iain