T-Mobile began in 1994 as VoiceStream Wireless, a business built on GSM-based personal communications services. The company later became part of Deutsche Telekom and adopted the T-Mobile brand, then expanded through the MetroPCS merger, the Sprint acquisition, and later additions such as Mint Mobile and Ultra Mobile. The company offers wireless voice, messaging, data, fixed telephony, wireless broadband, broadband internet services, and IoT solutions across a broad U.S. customer base. T-Mobile centers its network strategy on nationwide 5G and related advanced network capabilities.