diff --git a/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
index e7ae89ce..60228244 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/AccountActivity.kt
@@ -732,7 +732,4 @@ class AccountActivity : AppCompatActivity() {
         return Utils.checkHostPortParams(uri.substring(4))
     }
 
-    companion object {
-        private const val TAG = "Baresip"
-    }
 }
diff --git a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
index 856fa513..f812779e 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/BaresipService.kt
@@ -34,8 +34,6 @@ import kotlin.math.roundToInt
 
 class BaresipService: Service() {
 
-    private val TAG = "Baresip Service"
-
     internal lateinit var intent: Intent
     internal lateinit var am: AudioManager
     internal lateinit var rt: Ringtone
diff --git a/app/src/main/kotlin/com/tutpro/baresip/Constants.kt b/app/src/main/kotlin/com/tutpro/baresip/Constants.kt
new file mode 100644
index 00000000..9e405e0e
--- /dev/null
+++ b/app/src/main/kotlin/com/tutpro/baresip/Constants.kt
@@ -0,0 +1,3 @@
+package com.tutpro.baresip
+
+const val TAG = "Baresip"
\ No newline at end of file
diff --git a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
index ce357d50..6e29f8cc 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/MainActivity.kt
@@ -1850,8 +1850,6 @@ class MainActivity : AppCompatActivity() {
         // <aor, password> of those accounts that have auth username without auth password
         val aorPasswords = mutableMapOf<String, String>()
 
-        private const val TAG = "Baresip"
-
         const val ACCOUNTS_CODE = 1
         const val CONTACTS_CODE = 2
         const val CONFIG_CODE = 3