| /* | |
| Receive Voice Call | |
| This sketch, for the Arduino GSM shield, receives voice calls, | |
| displays the calling number, waits a few seconds then hangs up. | |
| Circuit: | |
| * GSM shield | |
| * Voice circuit. Refer to to the GSM shield getting started guide | |
| at http://www.arduino.cc/en/Guide/ArduinoGSMShield#toc11 | |
| * SIM card that can accept voice calls | |
| With no voice circuit the call will connect, but will not send or receive sound | |
| created Mar 2012 | |
| by Javier Zorzano | |
| This example is in the public domain. | |
| http://www.arduino.cc/en/Tutorial/GSMExamplesReceiveVoiceCall | |
| */ | |
| // Include the GSM library | |
| // PIN Number | |
| // initialize the library instance | |
| GSM gsmAccess; | |
| GSMVoiceCall vcs; | |
| // Array to hold the number for the incoming call | |
| char numtel[20]; | |
| void setup() { | |
| // initialize serial communications and wait for port to open: | |
| Serial.begin(9600); | |
| while (!Serial) { | |
| ; // wait for serial port to connect. Needed for native USB port only | |
| } | |
| Serial.println("Receive Voice Call"); | |
| // connection state | |
| boolean notConnected = true; | |
| // Start GSM shield | |
| // If your SIM has PIN, pass it as a parameter of begin() in quotes | |
| while (notConnected) { | |
| if (gsmAccess.begin(PINNUMBER) == GSM_READY) { | |
| notConnected = false; | |
| } else { | |
| Serial.println("Not connected"); | |
| delay(1000); | |
| } | |
| } | |
| // This makes sure the modem correctly reports incoming events | |
| vcs.hangCall(); | |
| Serial.println("Waiting for a call"); | |
| } | |
| void loop() { | |
| // Check the status of the voice call | |
| switch (vcs.getvoiceCallStatus()) { | |
| case IDLE_CALL: // Nothing is happening | |
| break; | |
| case RECEIVINGCALL: // Yes! Someone is calling us | |
| Serial.println("RECEIVING CALL"); | |
| // Retrieve the calling number | |
| vcs.retrieveCallingNumber(numtel, 20); | |
| // Print the calling number | |
| Serial.print("Number:"); | |
| Serial.println(numtel); | |
| // Answer the call, establish the call | |
| vcs.answerCall(); | |
| break; | |
| case TALKING: // In this case the call would be established | |
| Serial.println("TALKING. Press enter to hang up."); | |
| while (Serial.read() != '\n') { | |
| delay(100); | |
| } | |
| vcs.hangCall(); | |
| Serial.println("Hanging up and waiting for the next call."); | |
| break; | |
| } | |
| delay(1000); | |
| } | |