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...se an existing smartphone as a bridge, while others rely on dedicated GSM hardware, USB modems, or Voice over IP (VoIP) technologies. Each solution has its own advantages, limitations, and ideal use cases. This article explores...

... during this transition, including CDMA and TDMA-based systems, while GSM became enormously influential internationally and later established a major U.S. presence. 19. SMS Changes Communication Short Message Service—SMS&...