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diff --git a/libraries/GSM/examples/ReceiveVoiceCall/ReceiveVoiceCall.ino b/libraries/GSM/examples/ReceiveVoiceCall/ReceiveVoiceCall.ino
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+++ b/libraries/GSM/examples/ReceiveVoiceCall/ReceiveVoiceCall.ino
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+/*
+ 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://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://arduino.cc/en/Tutorial/GSMExamplesReceiveVoiceCall
+ 
+ */
+
+// Include the GSM library
+#include <GSM.h>
+
+// PIN Number
+#define PINNUMBER ""
+
+// 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 Leonardo 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);
+}
+
+