How do I stop messages from playing out loud?

Since Zello is designed to mimic a walkie-talkie, voice messages play in real-time. If you don't want to receive messages in real-time and prefer to listen to messages at a later time, you can change your Zello status to Busy.

For a more in-depth overview of statuses, reference this support article. Step-by-step instructions for changing your status are available here.