diff --git a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
index 0d6866a0..085bf771 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
@@ -913,9 +913,10 @@ class MainActivity : AppCompatActivity() {
 
             RECORD_PERMISSION_REQUEST_CODE -> {
                 if ((grantResults.size > 0) && (grantResults[0] != PackageManager.PERMISSION_GRANTED))
-                    Toast.makeText(applicationContext, getString(R.string.no_calls),
-                            Toast.LENGTH_LONG).show()
-                startBaresip()
+                    Utils.alertView(this, getString(R.string.notice),
+                            getString(R.string.no_calls), ::startBaresip)
+                else
+                    startBaresip()
             }
 
             BACKUP_PERMISSION_REQUEST_CODE ->
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
index e5aa68ce..f3fddc99 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Utils.kt
@@ -50,12 +50,15 @@ object Utils {
         return result
     }
 
-    fun alertView(context: Context, title: String, message: String) {
+    fun alertView(context: Context, title: String, message: String, action: () -> (Unit) = {}) {
         val builder = AlertDialog.Builder(context)
         builder.setTitle(title)
                 .setMessage(message)
                 .setPositiveButton(R.string.ok)
-                { dialog, _ -> dialog.dismiss() }
+                { dialog, _ ->
+                    dialog.dismiss()
+                    action()
+                }
                 .show()
     }