Any recommendation on DTMF Tx only, caller-id, V.23 ic's?

[chicken_feet]

dtfm ic

Hi all,

Been trying to get some infor for both of these ic. Can anyone recommend any easily available ic's that can perform either one of the above task?

It doesn't matter if they have all of it in a single chip or separately....

I have check out the CMX860, everything i wanted in inside the chip, call progress, caller id, DTMF TX, V.23 modem...., but i am afraid that it will be very difficult to procure and cost prohibitive....

anyway, i have check out on MT8889, DTMF Tx/Rx... it seems that they does not produce DTMF Transmitter only, anyone know why is that? I am searchin for DTMF Tx only, hoping that it will be cheaper than a Tx/Rx.

What about Holtek ic? Any recommendation?

Thanks a lot..and have a good day

chicken_feet

 

[carrier]

pcd3316 avr

you can use mt8880 for DTFM out-in
in the caller id data from bs incomming before first ring in dtfm format.
but for caller id in FSK-DTFM MT8843 is the best.
or PCD3316

 

[m323]

dtmf transmitter chip

Hi
I want a sample code using mt8843 with micro 8051 or AVR .

 

[masood786]

Do you have found the solution for mt8843 with micro 8051 or AVR. If yes then share with us..