diff --git a/README.md b/README.md
index 812d239e..62072152 100644
--- a/README.md
+++ b/README.md
@@ -379,7 +379,7 @@ TwilioVoice.getCallInvite()
         }
     })
 
-// Unregister device with Twilio (iOS only)
+// Unregister device with Twilio
 TwilioVoice.unregister()
 ```
 
diff --git a/android/src/main/java/com/hoxfon/react/RNTwilioVoice/TwilioVoiceModule.java b/android/src/main/java/com/hoxfon/react/RNTwilioVoice/TwilioVoiceModule.java
index d9c627fb..5d8ddc9c 100644
--- a/android/src/main/java/com/hoxfon/react/RNTwilioVoice/TwilioVoiceModule.java
+++ b/android/src/main/java/com/hoxfon/react/RNTwilioVoice/TwilioVoiceModule.java
@@ -52,6 +52,7 @@
 import com.twilio.voice.LogLevel;
 import com.twilio.voice.RegistrationException;
 import com.twilio.voice.RegistrationListener;
+import com.twilio.voice.UnregistrationListener;
 import com.twilio.voice.Voice;
 
 import java.util.HashMap;
@@ -118,6 +119,7 @@ public class TwilioVoiceModule extends ReactContextBaseJavaModule implements Act
     static Map<String, Integer> callNotificationMap;
 
     private RegistrationListener registrationListener = registrationListener();
+    private UnregistrationListener unregistrationListener = unregistrationListener();
     private Call.Listener callListener = callListener();
 
     private CallInvite activeCallInvite;
@@ -225,6 +227,26 @@ public void onError(RegistrationException error, String accessToken, String fcmT
         };
     }
 
+    private UnregistrationListener unregistrationListener() {
+        return new UnregistrationListener() {
+            @Override
+            public void onUnregistered(String accessToken, String fcmToken) {
+                if (BuildConfig.DEBUG) {
+                    Log.d(TAG, "Successfully unregistered FCM");
+                }
+                eventManager.sendEvent(EVENT_DEVICE_NOT_READY, null);
+            }
+
+            @Override
+            public void onError(RegistrationException error, String accessToken, String fcmToken) {
+                Log.e(TAG, String.format("Unregistration Error: %d, %s", error.getErrorCode(), error.getMessage()));
+                WritableMap params = Arguments.createMap();
+                params.putString("err", error.getMessage());
+                eventManager.sendEvent(EVENT_DEVICE_NOT_READY, params);
+            }
+        };
+    }
+
     private Call.Listener callListener() {
         return new Call.Listener() {
             /*
@@ -618,6 +640,41 @@ public void onComplete(@NonNull Task<InstanceIdResult> task) {
                 });
     }
 
+    /*
+     * Unregister your android device with Twilio
+     *
+     */
+
+    @ReactMethod
+    public void unregister(Promise promise) {
+        unregisterForCallInvites();
+        WritableMap params = Arguments.createMap();
+        params.putBoolean("initialized", false);
+        promise.resolve(params);
+    }
+
+    private void unregisterForCallInvites() {
+        FirebaseInstanceId.getInstance().getInstanceId()
+                .addOnCompleteListener(new OnCompleteListener<InstanceIdResult>() {
+                    @Override
+                    public void onComplete(@NonNull Task<InstanceIdResult> task) {
+                        if (!task.isSuccessful()) {
+                            Log.w(TAG, "getInstanceId failed", task.getException());
+                            return;
+                        }
+
+                        // Get new Instance ID token
+                        String fcmToken = task.getResult().getToken();
+                        if (fcmToken != null) {
+                            if (BuildConfig.DEBUG) {
+                                Log.d(TAG, "Unregistering with FCM");
+                            }
+                            Voice.unregister(accessToken, Voice.RegistrationChannel.FCM, fcmToken, unregistrationListener);
+                        }
+                    }
+                });
+    }
+
     @ReactMethod
     public void accept() {
         callAccepted = true;
diff --git a/index.js b/index.js
index b84b91bf..1ee5184f 100644
--- a/index.js
+++ b/index.js
@@ -86,9 +86,7 @@ const Twilio = {
         }
     },
     unregister() {
-        if (Platform.OS === IOS) {
-            TwilioVoice.unregister()
-        }
+        TwilioVoice.unregister()
     },
     addEventListener(type, handler) {
         if (!_eventHandlers.hasOwnProperty(type)) {