diff --git a/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java b/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java
index 0bbb716c..a4fbf173 100644
--- a/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java
+++ b/android/src/main/java/com/carusto/ReactNativePjSip/PjSipService.java
@@ -272,7 +272,10 @@ public int onStartCommand(final Intent intent, int flags, int startId) {
             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;
+            
+            // getCallState is deprecated in api 31. So we skip this check for now.
+            // mGSMIdle = mTelephonyManager.getCallState() == TelephonyManager.CALL_STATE_IDLE;
+
             IntentFilter phoneStateFilter = new IntentFilter(TelephonyManager.ACTION_PHONE_STATE_CHANGED);
             registerReceiver(mPhoneStateChangedReceiver, phoneStateFilter);