GSM library to the new format and some strings adaptations

libraries/GSM/examples/MakeVoiceCall/MakeVoiceCall.ino

@@ -0,0 +1,116 @@
+/*
+ Make Voice Call
+ 
+ This sketch, for the Arduino GSM shield, puts a voice call to
+ a remote phone number that you enter through the serial monitor.
+ To make it work, open the serial monitor, and when you see the 
+ READY message, type a phone number. Make sure the serial monitor 
+ is set to send a just newline when you press return.
+ 
+ Circuit:
+ * GSM shield 
+ * Voice circuit. 
+ With no voice circuit the call will send nor receive any sound
+ 
+ 
+ created Mar 2012
+ by Javier Zorzano
+ 
+ This example is in the public domain.
+ */
+
+// libraries
+#include <GSM.h>
+
+// PIN Number
+#define PINNUMBER ""
+
+// initialize the library instance
+GSM gsmAccess; // include a 'true' parameter for debug enabled
+GSMVoiceCall vcs;
+
+String remoteNumber = "";  // the number you will call
+char charbuffer[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("Make 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);
+    }
+  }
+  
+  Serial.println("GSM initialized.");
+  Serial.println("Enter phone number to call.");
+
+}
+
+void loop()
+{
+
+  // add any incoming characters to the String:
+  while (Serial.available() > 0)
+  {
+    char inChar = Serial.read();
+    // if it's a newline, that means you should make the call:
+    if (inChar == '\n')
+    {
+      // make sure the phone number is not too long:
+      if (remoteNumber.length() < 20)
+      {
+        // let the user know you're calling:
+        Serial.print("Calling to : ");
+        Serial.println(remoteNumber);
+        Serial.println();
+
+        // Call the remote number
+        remoteNumber.toCharArray(charbuffer, 20);
+        
+        
+        // Check if the receiving end has picked up the call
+        if(vcs.voiceCall(charbuffer))
+        {
+          Serial.println("Call Established. Enter line to end");
+          // Wait for some input from the line
+          while(Serial.read()!='\n' && (vcs.getvoiceCallStatus()==TALKING));          
+          // And hang up
+          vcs.hangCall();
+        }
+        Serial.println("Call Finished");
+        remoteNumber="";
+        Serial.println("Enter phone number to call.");
+      } 
+      else
+      {
+        Serial.println("That's too long for a phone number. I'm forgetting it"); 
+        remoteNumber = "";
+      }
+    } 
+    else
+    {
+      // add the latest character to the message to send:
+      if(inChar!='\r')
+        remoteNumber += inChar;
+    }
+  } 
+}
+