PWT (Personal Wireless Telecommunications)

A U.S. standard for digital cordless telephony, based

on the pan-European Digital Enhanced Cordless Telecommunications (DECT) standard. Through frequency division multiplexing (FDM), PWT provides 10 carriers in the unlicensed 1910–1920 MHz band, with channel spacing at 1.25 MHz. Each channel will support 1.152 Mbps using /4 differential quaternary phase shift keying (/4 DQPSK) modulation. Each channel supports 12 users through time division multiple access (TDMA) and time division duplex (TDD), for a total system load of 120 users. Voice

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• single-line digital subscriber line (SDSL)
• single-line DSL (SDSL)
• single-mode fiber (SMF)
• single number dialing
• single number dialing
• single number dialing
• Single Point of Termination (SPOT)
• single sideband (SS or SSB)
• sink
• S interface
• sintering
• sinusoidal waveform
• SiO
• SIPO (serial-in, parallel-out)
• SIP (Session Initiation Protocol)
• site–local address
• skills-based routing
• skin effect
• skip
• Skipjack
• skywave
• SLA (Service Level Agreement)
• SLC
• SLC-96 (Subscriber Line Carrier-96)
• SLIP (Serial Line Internet Protocol)