For a 'Modem on a chip' look at:
www.cermetek.com , don't know how many of your requested features they have...


Duilio Foschi schreef:

> in the current project I would need a modem-on-a-chip that has the following
> features:
>
> 1. DTMF detection
> 2. DTMF generation
> 3. ring detect
> 4. CallerID
>
> trasmission speed is not that important.
>
> 1200 baud is ok.
>
> Somebody heard of such a beast ?
>
> Thank you
>
> Duilio Foschi