Paulo:
  try with HOLTEK HT9200A (or B) (DTMF generator with serial interface). I
don't know DTMF receiver with serial interface, sorry.
  I you need .pdf i can send it. Tell me know this in private lines..

Regards

Hugo J. M|ller
H.J.M. Hardware & Software Diseqos Electrsnicos
San Nicolas 683
Tel-Fax : 54-(0)-343-424-5953
(3100) Parana (Entre Rmos) Argentina
Email : hmuller@arnet.com.ar
Web Site: http://www.pagina.de/hjm
UIN (ICQ) : 38.605.074


  ----- Original Message -----
  From: Easy Control Tec Ltda
  Sent: Wednesday, April 26, 2000 7:36 PM
  Subject: [OT] Serial DTMF transeiver


  Hi !

  Does anybody knows any DTMF transeiver witch serial interface (I2C,
SPI,...)
  IF 8DIP better !

  Best regards,

  Paulo Costamilan - Easy Control Tec.