Digits allows customers to seamlessly use their phone number for messaging and calls across a number of devices including phones, tablets, and computers. This type of service has already been available to Apple device users, but T-Mobile is taking it a step further.

Along with streamlined messaging, Digits also allows you to use more than one number on a given device. So, rather than carrying around different phones for personal and work use, you can have more than one number on the same device. You can also have the same number on different devices, meaning you can get rid of that ancient landline and have your home number on every one of your family members' phones.

All current T-Mobile customers will have their numbers upgraded to Digits on May 31st and they'll be able to purchase an additional Digits line for $10 per month. Customers with a T-Mobile One Plus plan will be able to get an additional Digits line for free for a limited time.