diff --git a/atox/src/main/kotlin/ActionReceiver.kt b/atox/src/main/kotlin/ActionReceiver.kt
index 67fe0562d..1957d99c1 100644
--- a/atox/src/main/kotlin/ActionReceiver.kt
+++ b/atox/src/main/kotlin/ActionReceiver.kt
@@ -6,15 +6,22 @@
 package ltd.evilcorp.atox
 
 import android.Manifest
+import android.app.Activity
 import android.content.BroadcastReceiver
 import android.content.Context
 import android.content.Intent
+import android.net.Uri
+import android.provider.Settings
 import android.util.Log
 import android.widget.Toast
+import androidx.activity.result.contract.ActivityResultContracts
+import androidx.appcompat.app.AppCompatActivity
 import androidx.core.app.RemoteInput
 import androidx.core.content.IntentCompat
+import androidx.fragment.app.Fragment
 import im.tox.tox4j.av.exceptions.ToxavAnswerException
 import javax.inject.Inject
+import kotlin.coroutines.CoroutineContext
 import kotlinx.coroutines.CoroutineScope
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.firstOrNull
@@ -129,6 +136,17 @@ class ActionReceiver : BroadcastReceiver() {
             return
         }
 
+        if (!context.hasPermission(Manifest.permission.RECORD_AUDIO)) {
+            // Unable to speak, so reject the call
+            callManager.endCall(pk)
+            callManager.removePendingCall(pk)
+            notificationHelper.dismissCallNotification(pk)
+            // take the user to Settings to set mic permission
+            val intent = buildPermissionIntent(context)
+            context.startActivity(intent)
+            return
+        }
+
         try {
             callManager.startCall(pk)
             notificationHelper.showOngoingCallNotification(contact)
@@ -139,9 +157,22 @@ class ActionReceiver : BroadcastReceiver() {
 
         val isSendingAudio = context.hasPermission(Manifest.permission.RECORD_AUDIO) && callManager.startSendingAudio()
         if (!isSendingAudio) {
+            Log.e(TAG, "Failed to start sending audio")
             withContext(Dispatchers.Main) {
                 Toast.makeText(context, R.string.call_mic_permission_needed, Toast.LENGTH_LONG).show()
             }
         }
     }
+
+    private fun buildPermissionIntent(context: Context): Intent {
+        val intent = Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
+        with(intent) {
+            data = Uri.fromParts("package", context.packageName, null)
+            addCategory(Intent.CATEGORY_DEFAULT)
+            addFlags(Intent.FLAG_ACTIVITY_NEW_TASK)
+            addFlags(Intent.FLAG_ACTIVITY_NO_HISTORY)
+            addFlags(Intent.FLAG_ACTIVITY_EXCLUDE_FROM_RECENTS)
+        }
+        return intent
+    }
 }
diff --git a/atox/src/main/kotlin/ui/call/CallFragment.kt b/atox/src/main/kotlin/ui/call/CallFragment.kt
index 1b2fa540e..24a2ab811 100644
--- a/atox/src/main/kotlin/ui/call/CallFragment.kt
+++ b/atox/src/main/kotlin/ui/call/CallFragment.kt
@@ -7,6 +7,7 @@ package ltd.evilcorp.atox.ui.call
 
 import android.Manifest
 import android.os.Bundle
+import android.util.Log
 import android.view.View
 import android.widget.Toast
 import androidx.activity.result.contract.ActivityResultContracts
@@ -26,21 +27,11 @@ import ltd.evilcorp.atox.vmFactory
 import ltd.evilcorp.core.vo.PublicKey
 import ltd.evilcorp.domain.feature.CallState
 
-private const val PERMISSION = Manifest.permission.RECORD_AUDIO
+private const val TAG = "CallFragment"
 
 class CallFragment : BaseFragment<FragmentCallBinding>(FragmentCallBinding::inflate) {
     private val vm: CallViewModel by viewModels { vmFactory }
 
-    private val requestPermissionLauncher = registerForActivityResult(
-        ActivityResultContracts.RequestPermission(),
-    ) { granted ->
-        if (granted) {
-            vm.startSendingAudio()
-        } else {
-            Toast.makeText(requireContext(), getString(R.string.call_mic_permission_needed), Toast.LENGTH_LONG).show()
-        }
-    }
-
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) = binding.run {
         ViewCompat.setOnApplyWindowInsetsListener(view) { _, compat ->
             val insets = compat.getInsets(WindowInsetsCompat.Type.systemBars())
@@ -70,10 +61,11 @@ class CallFragment : BaseFragment<FragmentCallBinding>(FragmentCallBinding::infl
             if (vm.sendingAudio.value) {
                 vm.stopSendingAudio()
             } else {
-                if (requireContext().hasPermission(PERMISSION)) {
+                if (requireContext().hasPermission(Manifest.permission.RECORD_AUDIO)) {
                     vm.startSendingAudio()
                 } else {
-                    requestPermissionLauncher.launch(PERMISSION)
+                    // not to get here; permission had been checked in ChatFragment.onViewCreated
+                    Log.e(TAG, "Attempt to activate mic without user permission")
                 }
             }
         }
@@ -99,7 +91,7 @@ class CallFragment : BaseFragment<FragmentCallBinding>(FragmentCallBinding::infl
 
         startCall()
 
-        if (requireContext().hasPermission(PERMISSION)) {
+        if (requireContext().hasPermission(Manifest.permission.RECORD_AUDIO)) {
             vm.startSendingAudio()
         }
     }
diff --git a/atox/src/main/kotlin/ui/chat/ChatFragment.kt b/atox/src/main/kotlin/ui/chat/ChatFragment.kt
index f9a504063..e330bf648 100644
--- a/atox/src/main/kotlin/ui/chat/ChatFragment.kt
+++ b/atox/src/main/kotlin/ui/chat/ChatFragment.kt
@@ -5,6 +5,7 @@
 
 package ltd.evilcorp.atox.ui.chat
 
+import android.Manifest
 import android.app.AlertDialog
 import android.content.ActivityNotFoundException
 import android.content.ClipData
@@ -45,6 +46,7 @@ import java.util.Locale
 import ltd.evilcorp.atox.BuildConfig
 import ltd.evilcorp.atox.R
 import ltd.evilcorp.atox.databinding.FragmentChatBinding
+import ltd.evilcorp.atox.hasPermission
 import ltd.evilcorp.atox.requireStringArg
 import ltd.evilcorp.atox.truncated
 import ltd.evilcorp.atox.ui.BaseFragment
@@ -68,13 +70,21 @@ class OpenMultiplePersistableDocuments : ActivityResultContracts.OpenMultipleDoc
 }
 
 class ChatFragment : BaseFragment<FragmentChatBinding>(FragmentChatBinding::inflate) {
-    private val viewModel: ChatViewModel by viewModels { vmFactory }
 
+    private val viewModel: ChatViewModel by viewModels { vmFactory }
     private lateinit var contactPubKey: String
     private var contactName = ""
     private var selectedFt: Int = Int.MIN_VALUE
     private var fts: List<FileTransfer> = listOf()
 
+    private val requestPermissionLauncher = registerForActivityResult(
+        ActivityResultContracts.RequestPermission(),
+    ) { granted ->
+        if (!granted) {
+            Toast.makeText(requireContext(), getString(R.string.call_mic_permission_needed), Toast.LENGTH_LONG).show()
+        }
+    }
+
     private val exportBackupLauncher =
         registerForActivityResult(ActivityResultContracts.CreateDocument("application/json")) { dest ->
             if (dest == null) return@registerForActivityResult
@@ -443,6 +453,12 @@ class ChatFragment : BaseFragment<FragmentChatBinding>(FragmentChatBinding::infl
     }
 
     private fun navigateToCallScreen() {
+        // check the permission before opening CallFragment
+        if (!requireContext().hasPermission(Manifest.permission.RECORD_AUDIO)) {
+            requestPermissionLauncher.launch(Manifest.permission.RECORD_AUDIO)
+            return
+        }
+
         view?.let { WindowInsetsControllerCompat(requireActivity().window, it).hide(WindowInsetsCompat.Type.ime()) }
         findNavController().navigate(
             R.id.action_chatFragment_to_callFragment,