Apple has released macOS Mojave 10.14.2 with a couple new features including RTT support for Wi-Fi calling.
The macOS Mojave 10.14.2 update improves the stability, compatibility and security of your Mac, and is recommended for all users.
This update: ● Adds RTT (real-time text) support for Wi-Fi calling ● Adds a menu item to News for opening a story in Safari ● Resolves an issue that may prevent iTunes form playing media to third-party AirPlay speakers.