diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index d9793e30..2b379e95 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -21,6 +21,7 @@
         tools:ignore="ScopedStorage" />
     <uses-permission android:name="android.permission.READ_CONTACTS" />
     <uses-permission android:name="android.permission.WRITE_CONTACTS" />
+    <uses-permission android:name="android.permission.CALL_PHONE" />
     <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT" />
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS" />
     <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
@@ -54,22 +55,14 @@
                 <action android:name="android.intent.action.MAIN" />
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.DIAL" />
-                <category android:name="android.intent.category.DEFAULT" />
-                <data android:scheme="sip" />
-                <data android:scheme="tel" />
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.intent.action.DIAL" />
-                <category android:name="android.intent.category.DEFAULT" />
-            </intent-filter>
             <intent-filter>
                 <action android:name="android.intent.action.VIEW" />
                 <action android:name="android.intent.action.DIAL" />
+                <action android:name="android.intent.action.CALL" />
                 <category android:name="android.intent.category.DEFAULT" />
                 <category android:name="android.intent.category.BROWSABLE" />
                 <data android:scheme="sip" />
+                <data android:scheme="sips" />
                 <data android:scheme="tel" />
             </intent-filter>
         </activity>
@@ -178,7 +171,6 @@
                 <action android:name="com.tutpro.baresip.QUIT" />
             </intent-filter>
         </receiver>
-
     </application>
 
 </manifest>
diff --git a/app/src/main/cpp/baresip.c b/app/src/main/cpp/baresip.c
index b20757d2..c04a55ee 100644
--- a/app/src/main/cpp/baresip.c
+++ b/app/src/main/cpp/baresip.c
@@ -167,13 +167,7 @@ static void ua_event_handler(struct ua *ua, enum ua_event ev,
             len = re_snprintf(event_buf, sizeof event_buf, "registering failed,%s", prm);
             break;
         case UA_EVENT_CALL_INCOMING:
-            if (uag_call_count() > 1) {
-                LOGD("auto-rejecting call from %s\n", prm);
-                ua_hangup(ua, call, 486, "Busy Here");
-                len = re_snprintf(event_buf, sizeof event_buf, "call rejected,%s", prm);
-            } else {
-                len = re_snprintf(event_buf, sizeof event_buf, "call incoming,%s", prm);
-            }
+            len = re_snprintf(event_buf, sizeof event_buf, "call incoming,%s", prm);
             break;
         case UA_EVENT_CALL_OUTGOING:
             len = re_snprintf(event_buf, sizeof event_buf, "call outgoing");
@@ -1065,12 +1059,12 @@ Java_com_tutpro_baresip_Api_ua_1hangup(JNIEnv *env, jobject thiz, jlong ua, jlon
     const uint16_t native_code = code;
     const char *native_reason = (*env)->GetStringUTFChars(env, reason, 0);
     LOGD("hanging up call %ld/%ld\n", (long)ua, (long)call);
-    re_thread_enter();
+    // re_thread_enter();
     if (strlen(native_reason) == 0)
         ua_hangup((struct ua *)ua, (struct call *)call, native_code, NULL);
     else
         ua_hangup((struct ua *)ua, (struct call *)call, native_code, native_reason);
-    re_thread_leave();
+    // re_thread_leave();
     (*env)->ReleaseStringUTFChars(env, reason, native_reason);
 }
 
diff --git a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
index 665aaa8f..6f46af1a 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
@@ -23,6 +23,7 @@ import android.os.Build.VERSION
 import android.provider.ContactsContract
 import android.provider.Settings
 import android.telecom.TelecomManager
+import android.telephony.TelephonyManager
 import android.text.Spannable
 import android.text.SpannableString
 import android.text.style.ForegroundColorSpan
@@ -616,14 +617,11 @@ class BaresipService: Service() {
         Log.d(TAG, "got uaEvent $event/$aor/$callp")
 
         val call = Call.ofCallp(callp)
-        if (call == null && callp != 0L &&
-                !setOf("call incoming", "call rejected", "call closed").contains(ev[0])) {
+        if (call == null && callp != 0L && !setOf("call incoming", "call closed").contains(ev[0])) {
             Log.w(TAG, "uaEvent $event did not find call $callp")
             return
         }
 
-        var newEvent: String? = null
-
         for (accountIndex in uas.indices) {
             if (uas[accountIndex].account.aor == aor) {
                 when (ev[0]) {
@@ -685,22 +683,24 @@ class BaresipService: Service() {
                     }
                     "call incoming" -> {
                         val peerUri = ev[1]
-                        val toast = if (!Utils.checkPermissions(this, arrayOf(Manifest.permission.RECORD_AUDIO)))
-                            R.string.no_calls
+                        val toastMsg = if (!Utils.checkPermissions(this, arrayOf(Manifest.permission.RECORD_AUDIO)))
+                            getString(R.string.no_calls)
                         else if (!requestAudioFocus(applicationContext))
-                            R.string.audio_focus_denied
+                            // request fails if there is an active telephony call
+                            getString(R.string.audio_focus_denied)
                         else
-                            0
-                        if (toast != 0) {
-                            toast(getString(toast))
+                            ""
+                        if (toastMsg != "") {
+                            Log.d(TAG, "Auto-rejecting incoming call $uap/$callp/$peerUri")
+                            Api.ua_hangup(uap, callp, 486, "Busy Here")
+                            toast(toastMsg)
+                            playUnInterrupted(R.raw.callwaiting, 1)
                             if (ua.account.callHistory) {
                                 CallHistory.add(CallHistory(aor, peerUri, "in"))
                                 CallHistory.save()
                                 ua.account.missedCalls = true
                             }
-                            if (!isMainVisible)
-                                return
-                            newEvent = "call rejected"
+                            return
                         } else {
                             Log.d(TAG, "Incoming call $uap/$callp/$peerUri")
                             Call(callp, ua, peerUri, "in", "incoming", Utils.dtmfWatcher(callp)).add()
@@ -766,19 +766,6 @@ class BaresipService: Service() {
                             return
                         }
                     }
-                    "call rejected" -> {
-                        playUnInterrupted(R.raw.callwaiting, 1)
-                        if (ua.account.callHistory) {
-                            CallHistory.add(CallHistory(aor, ev[1], "in"))
-                            CallHistory.save()
-                            ua.account.missedCalls = true
-                            if (!isMainVisible)
-                                return
-                            newEvent = "call rejected"
-                        } else {
-                            return
-                        }
-                    }
                     "call answered" -> {
                         stopMediaPlayer()
                         if (call!!.status == "incoming")
@@ -962,8 +949,7 @@ class BaresipService: Service() {
             }
         }
 
-        postServiceEvent(ServiceEvent(newEvent ?: event, arrayListOf(uap, callp),
-                System.nanoTime()))
+        postServiceEvent(ServiceEvent(event, arrayListOf(uap, callp), System.nanoTime()))
 
     }