Hi Nuttapong,
First, sorry if I don't understand correctly your ask.
You can enable Pop-up notifications (Genesys Config) and Browsers to allow pop-ups too.
The notification has a sound for alert, even if a user is working another window or program outside the browser, in the media voice you can hear the ring if no the auto-answer is enabled.

Att,
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Breno Canyggia Ferreira Marreco
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