Telephone Ring Silencer
The ATmega162 microcontroller-based Telephone Ring Silencer lets you set a timing schedule for when you want to mute your home telephone(s). The low-cost, user-friendly system suppresses the ring signal of incoming calls and directs them to an answering machine.
Link: http://www.circuitcellar.com/avr2004/DA3701.html
The ATmega162 microcontroller-based Telephone Ring Silencer lets you set a timing schedule for when you want to mute your home telephone(s). The low-cost, user-friendly system suppresses the ring signal of incoming calls and directs them to an answering machine.
Link: http://www.circuitcellar.com/avr2004/DA3701.html