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