Re: DTMF Recognition

Some manufacturers may require, that you're using a NCCI , other may require
a PLCI, but will also have to accept the NCCI.

Even if it seems, that DTMFs may be PLCI-oriented, this is not the whole
trueth: you need an established B3 connection, to select the B channel
protocol. So the DTMF recognition is dependend from the logical channel
(NCCI) configuration. If you're able to use a PLCI, you are using a
'shortcut' of a specific implementation - usually you have one and only one
NCCI for this PLCI ;)

HansJuergen

<[EMAIL PROTECTED]> schrieb im Newsbeitrag
news:[EMAIL PROTECTED]
> Well, I have the same problem but it doesn't work even with only the PLCI.
> It accepts the FACILITY_REQ but I get no FACILITY_IND's when I send the
DTMF
> tones. For the testing I used a simple tone phone device that calls the
> isdn.
>
> Best regards,
>
> Orestis Alevizos.
>
> "Christian Wallukat" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> >
> > Hi Tobias,
> >
> >
> > I use a Fritz PCMCIA Card in my Laptop, with the 49.18 Driver form AVM.
> >
> > If I use the NCCI in my Facility_REQ I get 0x2002 (Illegal Controller /
> PLCI
> > / NCCI), if I use the PLCI, it will work ...
> >
> >
> > Maybe that this depends from manufacturer to manufacturer :-( ....
> >
> > But I wan't to test it on an HST-Board in the next few days, and will
keep
> > you informed...
> >
> >
> > Kind regards ...
> >
> >
> > Christian
> >
> >
> >
> >
> > "Tobias Erichsen" <[EMAIL PROTECTED]> schrieb im Newsbeitrag
> > news:[EMAIL PROTECTED]
> > >
> > > "Christian Wallukat" <[EMAIL PROTECTED]> schrieb im
Newsbeitrag
> > > news:[EMAIL PROTECTED]
> > > > Hi Alev,
> > > >
> > > >
> > > > yes you need it...
> > > >
> > > > See CAPI-Specs. Part 3
> > > >
> > > > (If you wan't to receive DTMF over FACILITY_IND's...)
> > >
> > > If one want to implement dtmf-detection himself, he obviously needs an
> > > established bit-transparent layer-3 to get the audio-data to do the
> > > detection
> > > on.  But for using the capi-based dtmf-detection, the
capi-specification
> > > does not specify the need to supply a NCCI, a PLCI should suffice.
> > >
> > > I'm not sure though if every isdn-card-manufacturer allow the use of a
> > > PLCI at this place though. To be on the safe side, you should specify
> > > an NCCI.
> > >
> > > Tobias
> > >
> > >
> >
> >
>
>