Looking for telephone dialer design

[pokiri]

I need a telephone dialer reference design to be interfaced to a microcontroller. Where can I get it?

Thanks

 

[jhonny_yang]

On 2002-03-27 07:02, pokiri wrote:
I need a telephone dialer reference design to be interfaced to a microcontroller. Where can I get it?

Thanks

find in google or webring use key +dtmf +8051 or +dialer +8051

 

[cozturk]

Hi,

You can find a samle design at:

**broken link removed**

 

[Rayengine]

Many design has used microcontroller to act as dialler. It can use 5 bit or 6 bits port to provide a D-to-A inteface and output as the necessary timing and tolerance. I remember that National Semiconductor has article talking about the software implementation.

Bye
Rayengine

 

[diegor747]

thanks!!! for this link


diegor747 :smile:

 

[BENOIT]

have a look at my page telcom
**broken link removed** :
it shows the software of programming the
PCD3312 DTMF Dialer I2C chip with an 80C32.
MB.

 

[algilsan]

check this

8) Hello, for your porpouses, you can find numerous dtmf dialers from some manufactures, but may be hard to get them. Instead if you have a bit litte control on uC, you can use a small PIC, and the MT8870 DTMF tone decoder. So, you use the pis as tone dialer anf MT8870 as tone decoder to make a complete telefon dialer.

Be sure, it will be much easy and cheap than buy a tone dialer

Chek this file, it's a complete tono dialer/decoder, with a pic and source code

I hope you be usefull

 

[rajasekar]

Dialler

There are very good articles with source code at

http://www.piclist.com/techref/member/rat_ring

Check it.

Rajasekar :wink: