Glossary Technology evolves at a rapid-fire pace. That’s why we’ve built an easy-to-use glossary to help you better understand the terms, technologies and trends that impact your business. Show only animated 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z T_Port T-MGF T1 T1.413 T3 TA TCI TCM TCP Tcp: TDM TDMA TDR TE Telco Telecommunications Industry Association (TIA) Telecommunications Management Network (TMN) Telecommuting Terminal Adapter (TA) Terminal Multiplexer (TM) TFT Tg tHEC TIA Time Division Duplexing (TDD) Time to Live (TTL) Time-Division Multiple Access (TDMA) Time-Division Multiplexing (TDM) Time-Domain Reflectometry (TDR) TL TL_Port TLS TM TMN TNE TOH TOI ToS TPI Traceroute Transmission Control Protocol/Internet Protocol (TCP/IP) Transmitter Transparent LAN Service (TLS) Transport Layer Security (TLS) Ts TTI TTL TU Tu TUG Tunneling Turbo Codes Turn-up Twisted Pair Tx TXC TYPE