diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt
index df40a49d..a6e251a9 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountScreen.kt
@@ -236,7 +236,7 @@ private fun AccountContent(
                 if (ua.account.aor == "sip:mobile@pstn")
                     stringResource(R.string.not_available)
                 else
-                    ua.account.aor
+                    "tel:${Utils.uriUserPart(ua.account.aor)}"
             } else
                 ua.account.luri
 
diff --git a/app/src/main/kotlin/com/tutpro/baresip/SettingsScreen.kt b/app/src/main/kotlin/com/tutpro/baresip/SettingsScreen.kt
index 5eff76db..faad55a8 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/SettingsScreen.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/SettingsScreen.kt
@@ -1026,12 +1026,29 @@ private fun SettingsContent(
             )
             val defaultDialer by viewModel.defaultDialer.collectAsState()
             val roleManager = ctx.getSystemService(ROLE_SERVICE) as RoleManager
+
+            val requestPermissionLauncher = rememberLauncherForActivityResult(
+                ActivityResultContracts.RequestPermission()
+            ) { isGranted ->
+                if (isGranted)
+                    Log.d(TAG, "READ_PHONE_NUMBERS permission granted")
+                BaresipService.instance?.addMobileUserAgent()
+            }
+
             val dialerRoleRequest = rememberLauncherForActivityResult(
                 contract = ActivityResultContracts.StartActivityForResult()
-            ) { result ->
-                Log.d(TAG, "dialerRoleRequest result: $result")
-                viewModel.defaultDialer.value = roleManager.isRoleHeld(RoleManager.ROLE_DIALER)
-                BaresipService.instance?.addMobileUserAgent()
+            ) { _ ->
+                val isHeld = roleManager.isRoleHeld(RoleManager.ROLE_DIALER)
+                viewModel.defaultDialer.value = isHeld
+                if (isHeld) {
+                    if (Utils.checkPermissions(ctx, arrayOf(Manifest.permission.READ_PHONE_NUMBERS))) {
+                        BaresipService.instance?.addMobileUserAgent()
+                    } else {
+                        requestPermissionLauncher.launch(Manifest.permission.READ_PHONE_NUMBERS)
+                    }
+                } else {
+                    BaresipService.instance?.addMobileUserAgent()
+                }
             }
             Switch(
                 checked = defaultDialer,
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
index a6dbbd83..d1f0a848 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
@@ -1357,33 +1357,42 @@ object Utils {
             else
                 null
         }
-        else
+        else {
+            Log.d(TAG, "READ_PHONE_STATE permission not granted")
             return null
+        }
     }
 
     @SuppressLint("HardwareIds")
     fun getLine1Number(ctx: Context): String? {
         try {
             if (Build.VERSION.SDK_INT >= 33) {
-                if (ContextCompat.checkSelfPermission(ctx, Manifest.permission.READ_PHONE_NUMBERS) == PackageManager.PERMISSION_GRANTED) {
+                if (ctx.checkSelfPermission(Manifest.permission.READ_PHONE_NUMBERS) ==
+                        PackageManager.PERMISSION_GRANTED) {
                     val sm = ctx.getSystemService(Context.TELEPHONY_SUBSCRIPTION_SERVICE) as SubscriptionManager
                     val number = sm.getPhoneNumber(SubscriptionManager.DEFAULT_SUBSCRIPTION_ID)
                     if (number != "") {
-                        Log.i(TAG, "Retrieved SIM number via SubscriptionManager")
+                        Log.d(TAG, "Retrieved SIM number $number via SubscriptionManager")
                         return number
                     }
+                    else
+                        Log.d(TAG, "Did not get SIM number via SubscriptionManager")
                 }
+                else
+                    Log.d(TAG, "No READ_PHONE_NUMBERS permission")
             } else {
-                if (ContextCompat.checkSelfPermission(ctx, Manifest.permission.READ_PHONE_NUMBERS) == PackageManager.PERMISSION_GRANTED ||
-                    ContextCompat.checkSelfPermission(ctx, Manifest.permission.READ_PHONE_STATE) == PackageManager.PERMISSION_GRANTED) {
+                if (checkPermissions(ctx, arrayOf(Manifest.permission.READ_PHONE_NUMBERS,
+                        Manifest.permission.READ_PHONE_STATE))) {
                     val tm = ctx.getSystemService(Context.TELEPHONY_SERVICE) as TelephonyManager
                     @Suppress("DEPRECATION")
                     val number = tm.line1Number
                     if (number != null) {
-                        Log.i(TAG, "Retrieved SIM number via TelephonyManager")
+                        Log.d(TAG, "Retrieved SIM number $number via TelephonyManager")
                         return number
                     }
                 }
+                else
+                    Log.d(TAG, "No READ_PHONE_NUMBERS and/or READ_PHONE_STATE permissions")
             }
         } catch (e: Exception) {
             Log.w(TAG, "getLine1Number failed: ${e.message}")