diff --git a/app/src/main/java/org/linphone/core/CoreContext.kt b/app/src/main/java/org/linphone/core/CoreContext.kt
index 3c90c1378..6b68b155a 100644
--- a/app/src/main/java/org/linphone/core/CoreContext.kt
+++ b/app/src/main/java/org/linphone/core/CoreContext.kt
@@ -85,6 +85,10 @@ class CoreContext @UiThread constructor(val context: Context) : HandlerThread("C
         MutableLiveData<Event<String>>()
     }
 
+    val refreshMicrophoneMuteStateEvent: MutableLiveData<Event<Boolean>> by lazy {
+        MutableLiveData<Event<Boolean>>()
+    }
+
     val showGreenToastEvent: MutableLiveData<Event<Pair<Int, Int>>> by lazy {
         MutableLiveData<Event<Pair<Int, Int>>>()
     }
diff --git a/app/src/main/java/org/linphone/telecom/TelecomAndroidAutoService.kt b/app/src/main/java/org/linphone/telecom/TelecomAndroidAutoService.kt
index d84dd883c..673957ace 100644
--- a/app/src/main/java/org/linphone/telecom/TelecomAndroidAutoService.kt
+++ b/app/src/main/java/org/linphone/telecom/TelecomAndroidAutoService.kt
@@ -23,15 +23,32 @@ import android.content.pm.ApplicationInfo
 import androidx.car.app.CarAppService
 import androidx.car.app.validation.HostValidator
 import org.linphone.R
+import org.linphone.core.tools.Log
 
 class TelecomAndroidAutoService : CarAppService() {
+    companion object {
+        private const val TAG = "[Telecom Android Auto Service]"
+    }
+
     override fun createHostValidator(): HostValidator {
+        val host = hostInfo
+        Log.e("$TAG Host is [${host?.packageName}] with UID [${host?.uid}]")
+
+        val validator = HostValidator.Builder(applicationContext)
+            .addAllowedHosts(R.array.hosts_allowlist_sample_copy) // androidx.car.app.R.array.hosts_allowlist_sampl
+            .build()
+        if (host != null) {
+            val allowed = validator.isValidHost(host)
+            Log.i("$TAG Host is [${if (allowed) "allowed" else "not allowed"}] in our validator")
+        } else {
+            Log.w("$TAG Host is null!")
+        }
+
         return if ((applicationInfo.flags and ApplicationInfo.FLAG_DEBUGGABLE) != 0) {
+            Log.w("$TAG App is in debug mode, allowing all hosts")
             HostValidator.ALLOW_ALL_HOSTS_VALIDATOR
         } else {
-            HostValidator.Builder(applicationContext)
-                .addAllowedHosts(R.array.hosts_allowlist_sample_copy)
-                .build()
+            validator
         }
     }
 }
diff --git a/app/src/main/java/org/linphone/telecom/TelecomCallControlCallback.kt b/app/src/main/java/org/linphone/telecom/TelecomCallControlCallback.kt
index 845cc27c2..6f8248669 100644
--- a/app/src/main/java/org/linphone/telecom/TelecomCallControlCallback.kt
+++ b/app/src/main/java/org/linphone/telecom/TelecomCallControlCallback.kt
@@ -36,6 +36,7 @@ import org.linphone.core.Call
 import org.linphone.core.CallListenerStub
 import org.linphone.core.tools.Log
 import org.linphone.utils.AudioUtils
+import org.linphone.utils.Event
 import org.linphone.utils.LinphoneUtils
 
 class TelecomCallControlCallback(
@@ -157,6 +158,7 @@ class TelecomCallControlCallback(
                 // This is to prevent mic not muted when joining conference if user decided to join as muted
                 if (muted || !LinphoneUtils.isCallOutgoing(callState, false)) {
                     call.microphoneMuted = muted
+                    coreContext.refreshMicrophoneMuteStateEvent.postValue(Event(true))
                 } else {
                     Log.w("$TAG Not following unmute request because call is in state [$callState]")
                 }
diff --git a/app/src/main/java/org/linphone/ui/call/CallActivity.kt b/app/src/main/java/org/linphone/ui/call/CallActivity.kt
index cb200ab5a..f15708861 100644
--- a/app/src/main/java/org/linphone/ui/call/CallActivity.kt
+++ b/app/src/main/java/org/linphone/ui/call/CallActivity.kt
@@ -295,6 +295,15 @@ class CallActivity : GenericActivity() {
                 hideUI(hide)
             }
         }
+
+        coreContext.refreshMicrophoneMuteStateEvent.observe(this) {
+            it.consume {
+                Log.i(
+                    "$TAG Refreshing microphone mute state, probably to sync with Android Auto action"
+                )
+                callViewModel.refreshMicrophoneState()
+            }
+        }
     }
 
     override fun onStart() {
diff --git a/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt b/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt
index 4ef0fcb2e..9a3c856a2 100644
--- a/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt
+++ b/app/src/main/java/org/linphone/ui/call/viewmodel/CurrentCallViewModel.kt
@@ -649,6 +649,23 @@ class CurrentCallViewModel @UiThread constructor() : GenericViewModel() {
         }
     }
 
+    @UiThread
+    fun refreshMicrophoneState() {
+        coreContext.postOnCoreThread {
+            val micMuted = if (currentCall.conference != null) {
+                currentCall.conference?.microphoneMuted ?: false
+            } else {
+                currentCall.microphoneMuted
+            }
+            if (currentCall.conference != null) {
+                currentCall.conference?.microphoneMuted = !micMuted
+            } else {
+                currentCall.microphoneMuted = !micMuted
+            }
+            isMicrophoneMuted.postValue(micMuted)
+        }
+    }
+
     @UiThread
     fun changeAudioOutputDevice() {
         val routeAudioToSpeaker = isSpeakerEnabled.value != true