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[[File:T-Mobile Logo.png|right|250px|]]
'''T-Mobile US, Inc.''' is a provider of mobile communications services, including voice, messaging and data, under its flagship brands, T-Mobile and Metro by T-Mobile, in the United States, Puerto Rico, and the United States Virgin Islands. The Company provides mobile communications services primarily using its fourth generation (4G) long-term evolution network and its fifth-generation (5G) technology network.
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== Description ==
T-Mobile device certification is a network certification and verification procedure performed on cellular devices to verify that they are compliant with the T-Mobile network and are operating at maximal intensity. For gadgets that have been designed to be operated on the T-Mobile system, hardware, OEMs/ODMs must receive T-Mobile product certification.