According to a purported leaked T-Mobile document obtained by TmoNews, the carrier will offer an unlimited mobile-to-mobile calling add-on for $10 a month starting April 4th. “Beginning April 4th, T-Mobile will offer Unlimited Any Mobile, a $10 per month subscriber-level feature that includes unlimited calling to any domestic mobile number, including Puerto Rico, regardless of carrier,” the document reads. The carrier claims that 80% of calls made on its network are to mobile numbers, making such an add-on appealing to subscribers looking to save money.  The feature will be available as an add-on for existing customers, and it will not require a new contract. Unlimited out-of-network mobile calling is nothing new; Sprint bundles a similar offering with its unlimited everything plans and AT&T has an add-on as well. A screen capture of the purported T-Mobile document follows below.

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Dan joins the BGR team as the Android Editor, covering all things relating to Google’s premiere operating system. His work has appeared on Fox News, Fox Business and Yahoo News, among other publications. When he isn’t testing the latest devices or apps, he can be found enjoying the sights and sounds of New York City.