diff --git a/examples/Audio_Examples/AudioExample1_PlayTone/AudioExample1_PlayTone.ino b/examples/Audio_Examples/AudioExample1_PlayTone/AudioExample1_PlayTone.ino
new file mode 100644
index 0000000..60f802d
--- /dev/null
+++ b/examples/Audio_Examples/AudioExample1_PlayTone/AudioExample1_PlayTone.ino
@@ -0,0 +1,129 @@
+#include "SparkFun_u-blox_Cellular_Arduino_Library.h"
+
+// Uncomment the line below that you need for Serial on your platform
+#define mySerial Serial1
+// SoftwareSerial mySerial(16, 17);
+
+// Uncomment the module you're using. If your module is not listed below, then
+// it's not supported for this example
+UBX_CELL_VOICE_BASE myModule; // This example works with all voice-enabled modules, so this base class can be used
+// LARA_R6001 myModule;
+// LARA_R6401 myModule;
+// LARA_R6801_00B myModule;
+
+void setup()
+{
+  Serial.begin(115200); // Start the serial console
+
+  // Wait for user to press key to begin
+  Serial.println(F("u-blox Cellular Audio Example 1 - Play Tone"));
+
+  Serial.println();
+  Serial.println(F("! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! !"));
+  Serial.println(F("This example requires an audio codec attached to the I2S interface"));
+  Serial.println(F("of the cellular modem. Please add one and update this example as"));
+  Serial.println(F("needed to configure your audio codec!"));
+  Serial.println(F("! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! !"));
+  Serial.println();
+
+  Serial.println(F("Press any key to begin"));
+  
+  while (!Serial.available()) // Wait for the user to press a key (send any serial character)
+    ;
+  while (Serial.available()) // Empty the serial RX buffer
+    Serial.read();
+
+  Serial.println(F("Beginning..."));
+
+  // myModule.enableDebugging(); // Uncomment this line to enable helpful debug messages on Serial
+
+  // For the MicroMod Asset Tracker, we need to invert the power pin so it pulls high instead of low
+  // Uncomment the next line if required
+  // myModule.invertPowerPin(true); 
+
+  // Initialize the module
+  if (myModule.begin(mySerial, UBX_CELL_DEFAULT_BAUD_RATE) )
+  {
+    Serial.println(F("Module connected!"));
+  }
+  else
+  {
+    Serial.println(F("Unable to communicate with the module."));
+    Serial.println(F("Manually power-on (hold the module's On button for 3 seconds) and try again."));
+    while (1) ; // Loop forever on fail
+  }
+  Serial.println();
+}
+
+void loop()
+{
+  String inputString;
+  char dtmfChar = 0;
+  uint16_t frequency = 0;
+  uint16_t duration = 0;
+  uint8_t volume = 0;
+  
+  while(true)
+  {
+    while(Serial.available() != 0){Serial.read();}
+    Serial.println(F("Enter a frequency in Hz (300-3400) or a DTMF character (0-9, *, #)"));
+    while(Serial.available() == 0){}
+
+    inputString = Serial.readStringUntil('\n');
+
+    if(inputString.length() == 1)
+    {
+      dtmfChar = inputString.charAt(0);
+      if((dtmfChar >= '0' && dtmfChar <= '9') || dtmfChar == '*' || dtmfChar == '#')
+      {
+        break;
+      }
+    }
+    else
+    {
+      frequency = inputString.toInt();
+      if(frequency >= 300 && frequency <= 3400)
+      {
+        dtmfChar == 0;
+        break;
+      }
+    }
+  }
+  
+  while(true)
+  {
+    while(Serial.available() != 0){Serial.read();}
+    Serial.println(F("Enter a duration in ms (50-1360)"));
+    while(Serial.available() == 0){}
+
+    inputString = Serial.readStringUntil('\n');
+    duration = inputString.toInt();
+    if(duration >= 50 && duration <= 1360)
+    {
+      break;
+    }
+  }
+  
+  while(true)
+  {
+    while(Serial.available() != 0){Serial.read();}
+    Serial.println(F("Enter a volume (0-100)"));
+    while(Serial.available() == 0){}
+
+    inputString = Serial.readStringUntil('\n');
+    volume = inputString.toInt();
+    if(volume <= 100)
+    {
+      break;
+    }
+  }
+
+  if(dtmfChar == 0)
+  {
+    myModule.generateToneFreq(frequency, duration, volume);
+  }
+  else
+  {
+    myModule.generateToneDTMF(dtmfChar, duration, volume);
+  }
+}
\ No newline at end of file
diff --git a/examples/Audio_Examples/AudioExample2_Loopback/AudioExample2_Loopback.ino b/examples/Audio_Examples/AudioExample2_Loopback/AudioExample2_Loopback.ino
new file mode 100644
index 0000000..b07ce47
--- /dev/null
+++ b/examples/Audio_Examples/AudioExample2_Loopback/AudioExample2_Loopback.ino
@@ -0,0 +1,71 @@
+#include "SparkFun_u-blox_Cellular_Arduino_Library.h"
+
+// Uncomment the line below that you need for Serial on your platform
+#define mySerial Serial1
+// SoftwareSerial mySerial(16, 17);
+
+// Uncomment the module you're using. If your module is not listed below, then
+// it's not supported for this example
+UBX_CELL_VOICE_BASE myModule; // This example works with all voice-enabled modules, so this base class can be used
+// LARA_R6001 myModule;
+// LARA_R6401 myModule;
+// LARA_R6801_00B myModule;
+
+void setup()
+{
+  Serial.begin(115200); // Start the serial console
+
+  // Wait for user to press key to begin
+  Serial.println(F("u-blox Cellular Audio Example 2 - Loopback"));
+
+  Serial.println();
+  Serial.println(F("! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! !"));
+  Serial.println(F("This example requires an audio codec attached to the I2S interface"));
+  Serial.println(F("of the cellular modem. Please add one and update this example as"));
+  Serial.println(F("needed to configure your audio codec!"));
+  Serial.println(F("! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! !"));
+  Serial.println();
+
+  Serial.println(F("Press any key to begin"));
+  
+  while (!Serial.available()) // Wait for the user to press a key (send any serial character)
+    ;
+  while (Serial.available()) // Empty the serial RX buffer
+    Serial.read();
+
+  Serial.println(F("Beginning..."));
+
+  // myModule.enableDebugging(); // Uncomment this line to enable helpful debug messages on Serial
+
+  // For the MicroMod Asset Tracker, we need to invert the power pin so it pulls high instead of low
+  // Uncomment the next line if required
+  // myModule.invertPowerPin(true); 
+
+  // Initialize the module
+  if (myModule.begin(mySerial, UBX_CELL_DEFAULT_BAUD_RATE) )
+  {
+    Serial.println(F("Module connected!"));
+  }
+  else
+  {
+    Serial.println(F("Unable to communicate with the module."));
+    Serial.println(F("Manually power-on (hold the module's On button for 3 seconds) and try again."));
+    while (1) ; // Loop forever on fail
+  }
+  Serial.println();
+}
+
+void loop()
+{
+  while(Serial.available() != 0){Serial.read();}
+  Serial.println(F("Enter any key to begin loopback"));
+  while(Serial.available() == 0){}
+  
+  myModule.playAudioResource(UBX_CELL_AUDIO_RESOURCE_LOOPBACK);
+  
+  while(Serial.available() != 0){Serial.read();}
+  Serial.println(F("Enter any key to stop loopback"));
+  while(Serial.available() == 0){}
+  
+  myModule.stopAudioResource(UBX_CELL_AUDIO_RESOURCE_LOOPBACK);
+}
\ No newline at end of file
diff --git a/examples/Audio_Examples/AudioExample3_CallControl/AudioExample3_CallControl.ino b/examples/Audio_Examples/AudioExample3_CallControl/AudioExample3_CallControl.ino
new file mode 100644
index 0000000..47f407f
--- /dev/null
+++ b/examples/Audio_Examples/AudioExample3_CallControl/AudioExample3_CallControl.ino
@@ -0,0 +1,129 @@
+#include "SparkFun_u-blox_Cellular_Arduino_Library.h"
+
+// Uncomment the line below that you need for Serial on your platform
+#define mySerial Serial1
+// SoftwareSerial mySerial(16, 17);
+
+// Uncomment the module you're using. If your module is not listed below, then
+// it's not supported for this example
+UBX_CELL_VOICE_BASE myModule; // This example works with all voice-enabled modules, so this base class can be used
+// LARA_R6001 myModule;
+// LARA_R6401 myModule;
+// LARA_R6801_00B myModule;
+
+bool callInProgress = false;
+bool incomingCall = false;
+
+void ringCallback()
+{
+  Serial.println(F("Incoming call! Enter \"A\" to answer, or anything else to reject"));
+  incomingCall = true;
+}
+
+void setup()
+{
+  String currentOperator = "";
+
+  Serial.begin(115200); // Start the serial console
+
+  // Wait for user to press key to begin
+  Serial.println(F("u-blox Cellular Audio Example 3 - Call Control"));
+
+  Serial.println();
+  Serial.println(F("! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! !"));
+  Serial.println(F("This example requires an audio codec attached to the I2S interface"));
+  Serial.println(F("of the cellular modem. Please add one and update this example as"));
+  Serial.println(F("needed to configure your audio codec!"));
+  Serial.println(F("! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! ! ATTENTION ! ! ! ! !"));
+  Serial.println();
+
+  Serial.println(F("Press any key to begin"));
+  
+  while (!Serial.available()) // Wait for the user to press a key (send any serial character)
+    ;
+  while (Serial.available()) // Empty the serial RX buffer
+    Serial.read();
+
+  Serial.println(F("Beginning..."));
+
+  // myModule.enableDebugging(); // Uncomment this line to enable helpful debug messages on Serial
+
+  // For the MicroMod Asset Tracker, we need to invert the power pin so it pulls high instead of low
+  // Uncomment the next line if required
+  // myModule.invertPowerPin(true); 
+
+  // Initialize the module
+  if (myModule.begin(mySerial, UBX_CELL_DEFAULT_BAUD_RATE) )
+  {
+    Serial.println(F("Module connected!"));
+  }
+  else
+  {
+    Serial.println(F("Unable to communicate with the module."));
+    Serial.println(F("Manually power-on (hold the module's On button for 3 seconds) and try again."));
+    while (1) ; // Loop forever on fail
+  }
+  Serial.println();
+
+  // First check to see if we're connected to an operator:
+  if (myModule.getOperator(&currentOperator) == UBX_CELL_SUCCESS)
+  {
+    Serial.print(F("Connected to: "));
+    Serial.println(currentOperator);
+  }
+  else
+  {
+    Serial.print(F("The module is not yet connected to an operator. Please use the previous examples to connect. Or wait and retry. Freezing..."));
+    while (1)
+      ; // Do nothing more
+  }
+
+  // Set callback function for when a new call is received
+  myModule.setRingCallback(&ringCallback);
+
+  Serial.println(F("Enter a number to dial"));
+
+  // Clear any input
+  while(Serial.available()){Serial.read();}
+}
+
+void loop()
+{
+  String inputString;
+
+  myModule.bufferedPoll();
+
+  if(Serial.available())
+  {
+    inputString = Serial.readStringUntil('\n');
+    while(Serial.available()){Serial.read();}
+
+    if(incomingCall)
+    {
+      if(inputString == "A" || inputString == "a")
+      {
+        Serial.println(F("Answering call, enter any key to hang up"));
+        myModule.answer();
+        callInProgress = true;
+      }
+      else
+      {
+        Serial.println(F("Rejecting call"));
+        myModule.hangUp();
+      }
+      incomingCall = false;
+    }
+    else if(callInProgress == false)
+    {
+      Serial.println("Dialing " + inputString + ", enter any key to hang up");
+      myModule.dial(inputString);
+      callInProgress = true;
+    }
+    else
+    {
+      Serial.println(F("Hanging up, enter a new number to dial"));
+      myModule.hangUp();
+      callInProgress = false;
+    }
+  }
+}
\ No newline at end of file
diff --git a/src/SparkFun_u-blox_Cellular_Arduino_Library.h b/src/SparkFun_u-blox_Cellular_Arduino_Library.h
index a5b2243..96e8cd8 100644
--- a/src/SparkFun_u-blox_Cellular_Arduino_Library.h
+++ b/src/SparkFun_u-blox_Cellular_Arduino_Library.h
@@ -1,3 +1,4 @@
 #include "sfe_ublox_cellular.h"
+#include "sfe_ublox_cellular_voice.h"
 #include "sfe_sara_r5.h"
 #include "sfe_lara_r6.h"
diff --git a/src/sfe_ublox_cellular_voice.h b/src/sfe_ublox_cellular_voice.h
index 0e291dd..9ceee64 100644
--- a/src/sfe_ublox_cellular_voice.h
+++ b/src/sfe_ublox_cellular_voice.h
@@ -10,11 +10,29 @@ const char* const UBX_CELL_COMMAND_PLAY_AUDIO = "+UPAR";    // Play audio resour
 const char* const UBX_CELL_COMMAND_STOP_AUDIO = "+USAR";    // Stop audio resource
 const char* const UBX_CELL_COMMAND_GENERATE_TONE = "+UTGN"; // Tone generator
 
+const char* const UBX_CELL_RING_URC = "RING";
+
+typedef enum
+{
+  UBX_CELL_AUDIO_RESOURCE_TONE = 0,
+  UBX_CELL_AUDIO_RESOURCE_MIDI = 1,
+  UBX_CELL_AUDIO_RESOURCE_LOOPBACK = 2
+} UBX_CELL_audio_resource_t;
+
 // Base class for any modules supporting voice calls
 template <typename T>
 class UBX_CELL_VOICE
 {
 public:
+  UBX_CELL_VOICE(void)
+  {
+    // Set ring URC callback to nullptr
+    _ringCallback = nullptr;
+
+    // Add handler for ring URC
+    static_cast<T*>(this)->addURCHandler(UBX_CELL_RING_URC, [this](const char* event){return this->urcCheckRing(event);});
+  }
+
   UBX_CELL_error_t dial(String number)
   {
     char *command;
@@ -60,7 +78,7 @@ class UBX_CELL_VOICE
                                   nullptr, UBX_CELL_STANDARD_RESPONSE_TIMEOUT);
   }
 
-  UBX_CELL_error_t playAudioResource(uint8_t audio_resource, uint8_t tone_id, uint8_t nof_repeat)
+  UBX_CELL_error_t playAudioResource(uint8_t audio_resource, uint8_t tone_id = 0, uint8_t nof_repeat = 0)
   {
     UBX_CELL_error_t err;
     char *command;
@@ -125,6 +143,36 @@ class UBX_CELL_VOICE
     free(command);
     return err;
   }
+
+  void setRingCallback(void (*callback)(void))
+  {
+    _ringCallback = callback;
+  }
+
+protected:
+  // Callback for incoming calls
+  void (*_ringCallback)(void);
+  
+  bool urcCheckRing(const char *event)
+  {
+    int socket, length;
+    char *searchPtr = strstr(event, UBX_CELL_RING_URC);
+    if (searchPtr != nullptr)
+    {
+      if(_ringCallback != nullptr)
+      {
+        _ringCallback();
+      }
+      return true;
+    }
+
+    return false;
+  }
+};
+
+class UBX_CELL_VOICE_BASE : public UBX_CELL, public UBX_CELL_VOICE<UBX_CELL_VOICE_BASE>
+{
+
 };
 
 #endif
\ No newline at end of file