Returns whether voice chat may be used on the device.
- iOS 4.1+
- macOS 10.8+
- Mac Catalyst 13.0+
- tvOS 9.0+
true if voice chat is available to the game.
Some countries or phone carriers may restrict the availability of voice over IP services. Before creating a
GKVoice object, your game should first check to see whether voice over IP is permitted on the device.