diff --git a/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt b/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
index 47218963..1c43f42c 100644
--- a/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
+++ b/app/src/main/kotlin/com/tutpro/baresip/MainScreen.kt
@@ -392,6 +392,7 @@ private fun MainScreen(
         if (isConnected) {
             if (configuration.orientation == Configuration.ORIENTATION_PORTRAIT) {
                 focusDtmf.value = true
+                delay(300)
                 keyboardController?.show()
             }
             else