FCC

7layers – an early provider of 3G TTY test services

February 27th, 2009

7layers

7layers – an early provider of 3G TTY test services Teletype / Teletypewriter (TTY) is a telecommunications feature for hearing and speech impaired persons, mandated by the FCC for the USA market. If you are developing a wireless telecommunications product for the North American market and your product is designed to support TTY technology mandated […]

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