diff --git a/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java b/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java
index 64c45e6..7b3bdfd 100644
--- a/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java
+++ b/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java
@@ -98,8 +98,6 @@ public class PjSipService extends Service {
 
     private PowerManager.WakeLock mIncallWakeLock;
 
-    private TelephonyManager mTelephonyManager;
-
     private WifiManager mWifiManager;
 
     private WifiManager.WifiLock mWifiLock;
@@ -226,8 +224,6 @@ public int onStartCommand(final Intent intent, int flags, int startId) {
             mWifiManager = (WifiManager) getApplicationContext().getSystemService(Context.WIFI_SERVICE);
             mWifiLock = mWifiManager.createWifiLock(WifiManager.WIFI_MODE_FULL_HIGH_PERF, this.getPackageName()+"-wifi-call-lock");
             mWifiLock.setReferenceCounted(false);
-            mTelephonyManager = (TelephonyManager) getApplicationContext().getSystemService(Context.TELEPHONY_SERVICE);
-            mGSMIdle = mTelephonyManager.getCallState() == TelephonyManager.CALL_STATE_IDLE;
 
             IntentFilter phoneStateFilter = new IntentFilter(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
             registerReceiver(mPhoneStateChangedReceiver, phoneStateFilter);
diff --git a/ios/RTCPjSip/PjSipCall.m b/ios/RTCPjSip/PjSipCall.m
index d7066c8..654790b 100755
--- a/ios/RTCPjSip/PjSipCall.m
+++ b/ios/RTCPjSip/PjSipCall.m
@@ -136,8 +136,8 @@ - (void)dtmf:(NSString*) digits {
     // TODO: Fallback for "The RFC 2833 payload format did not work".
     
     // Disables Original RFC 2833 dtmf
-    //pj_str_t value = pj_str((char *) [digits UTF8String]);
-    //pjsua_call_dial_dtmf(self.id, &value);
+    pj_str_t value = pj_str((char *) [digits UTF8String]);
+    pjsua_call_dial_dtmf(self.id, &value);
     
     // Adds Patch For SipInfo dtmf
     pjsua_call_send_dtmf_param param;