T-Mobile is announcing today that its Digits service, which has been in beta testing since late last year, will be available to all of its customers starting next Wednesday, May 31st. Digits allows T-Mobile customers to synchronize multiple phones, tablets, computers, smartwatches, and other devices to their phone numbers, similar to how Google’s Voice service works. The service also allows multiple numbers to be used with a single device, eliminating the need to carry multiple phones for personal and work needs.

Digits users can send text messages from their tablet or PC and have them appear as if they came from their phone. T-Mobile says that the service can allow families to have a shared phone number that rings all of their devices, no matter where they are. Or a second Digits number can be used as a burner line for when sharing your main phone number isn’t appropriate or safe.

Digits works with any Android or iOS device. The messaging service can be accessed on any device with a Chrome or Firefox browser, and the company provides apps for Android, iOS, Mac, and Windows that support it. Recent Samsung phones and the LG G5 have native integration for Digits in their existing dialers — other devices, such as the iPhone, will have to use the Digits app to place phone calls and manage their Digits lines. Messages sent through iMessage will not be synced to the Digits service.

T-Mobile says that during the beta test of the service, most customers used the ability to message from their PCs and tablets, while some found the ability to ring multiple devices with one number useful. Calls placed with the service use T-Mobile’s VoLTE and circuit-switched networks, which are the same as any other phone call, and do not rely on over-the-top data connections like other messaging apps do.

T-Mobile is offering the service on all of its existing lines for free. Additional Digits lines are available for $10 per month, though for a limited time, customers that subscribe to T-Mobile One Plus will get an extra Digits line at no additional cost.