That's an analog phone. Before you knock yourself out trying to program it, try to replace it with a Digital-the airtime price is dramatically less expensive. They're out there-I put one in my 500E and almost all the functions still work (I lost the "D" memories though). But the only way to find one is to go to your local cell phone store and hope they have one around. I actually got mine from an installer's personal car! For the Motorola DTMF phone, I bought him some cheapo portable in exchange
