diff --git a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
index 14c2501e..d418848a 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/ConfigActivity.kt
@@ -23,9 +23,6 @@ import java.util.*
 
 class ConfigActivity : AppCompatActivity() {
 
-    private val READ_CERT_PERMISSION_CODE = 1
-    private val READ_CA_PERMISSION_CODE = 2
-
     private lateinit var binding: ActivityConfigBinding
     private lateinit var autoStart: CheckBox
     private lateinit var listenAddr: EditText
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Constants.kt b/app/src/main/kotlin/com/tutpro/baresip/Constants.kt
index 34cc456f..67d12e1a 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/Constants.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/Constants.kt
@@ -6,3 +6,5 @@ const val BACKUP_PERMISSION_REQUEST_CODE = 1
 const val RESTORE_PERMISSION_REQUEST_CODE = 2
 const val RECORD_PERMISSION_REQUEST_CODE = 3
 const val CONTACTS_PERMISSION_REQUEST_CODE = 4
+const val READ_CERT_PERMISSION_CODE = 5
+const val READ_CA_PERMISSION_CODE = 6