The DTMF Car Control Project combines telecommunications technology with a remote-controlled car, allowing you to operate the car's movements from a distance. It utilizes DTMF tones generated by a ...

This project demonstrates a system where Twilio makes an outbound call using TwiML that connects to a SIP server, which then plays audio through the local speaker.

Today, most telephone equipment use a DTMF receiver IC. One common DTMF receiver IC is the Motorola MT8870 that is widely used in electronic communications circuits. The MT8870 is an 18-pin IC. It is ...