GSMShield ArduinoUno
Arduino

Receive Caller ID and dial USSD via AT commands

Sample code :

Arduino

Receive Voice Call

This sketch receives a voice call from an Arduino or Genuino board equipped with a GSM shield. Once the call is received and connected, it shows the number that is calling, and hangs up. You’ll need to attach a speaker and microphone to hear the connected call and transmit your voice. Hardware Required Arduino or […]