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Ten-codes, officially known as ten signals, are brevity codes used to represent common phrases in voice communication, particularly by US public safety officials and in citizens band (CB) radio transmissions. The police version of ten-codes is officially known as the APCO Project 14 Aural Brevity Code.[ 1]
A telephone keypad is a keypad installed on a push-button telephone or similar telecommunication device for dialing a telephone number. It was standardized when the dual-tone multi-frequency signaling (DTMF) system was developed in the Bell System in the United States in the 1960s – this replaced rotary dialing, that had been developed for ...
Call waiting - a system that notifies a caller of another incoming telephone call by sounding a sound in the earpiece. Called party - (or callee or B-party) Caller. Calling party. Conference call (multi-party call) COCOT. Cut – unexpected, and usually sudden, termination of call, line or service.
This permits rich call-related services to be developed. Some of the first such services were call management related, call forwarding (busy and no answer), voice mail, call waiting, conference calling, calling name and number display, call screening, malicious caller identification, busy callback. [7]: Introduction xx
The system is strictly for used by the 'deaf, deafened, hard of hearing, or speech impaired persons' and is not available for the general public. [7] Furthermore, a voice call to 911 must be made to initiate the text connection and cannot be contacted simply by texting to 911. It also requires registration and a valid messaging plan.
106 Text Emergency Call, commonly known as simply 106, [ 1] is the Australian national emergency telephone number to be used in life-threatening or time critical situations [ 2] for those with a speech and / or hearing impairment who use telecommunications device for the deaf (textphone or teletypewriter (TTY)). [ 1][ 3][ 4] It is run by the ...
Text messaging, or texting, is the act of composing and sending electronic messages, typically consisting of alphabetic and numeric characters, between two or more users of mobile phones, desktops / laptops, or another type of compatible computer. Text messages may be sent over a cellular network or may also be sent via satellite or Internet ...
Telephone directory. A telephone directory, commonly called a telephone book, telephone address book, phonebook, or the white and yellow pages, is a listing of telephone subscribers in a geographical area or subscribers to services provided by the organization that publishes the directory. Its purpose is to allow the telephone number of a ...