Hi Folks

I need a code (PIC16c54) for an dialer (pulse) and detect line tone.
Can someone help me ? Thanks
Ricardo

        +-------+       +---------+
        | Trafo |       |    P    |
        | 1:1   |-------|    I    |---------- relay (phone line)
        | 600R  |       |    C    |
        +-------+       |    1    |
                        |    6    |---------- relay (phone line dialer)
                        |    C    |
                        |    5    |---------- SET dialer (start)
                        |    4    |---------- RESET dialer (stop)
                        +---------+