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Worldwide distribution of country calling codes. Regions are coloured by first digit. Telephone country codes, originally termed International Codes by the International Telegraph and Telephone Consultative Committee (C.C.I.T.T.) in 1960, [1] but also sometimes referred to as "country dial-in codes", or historically "international subscriber dialing" (ISD) codes in the U.K., are telephone ...
This is a list of international dialing prefixes used in various countries for direct dialing of international telephone calls.These prefixes are typically required only when dialling from a landline, while in GSM-compliant mobile phone (cell phone) systems, the symbol + before the country code may be used irrespective of where the telephone is used at that moment; the network operator ...
Hotline telephone without dial. In an application not involving a telephone operator, a two-point automatic ringdown circuit, or ringdown, has a telephone at each end. When the telephone at one end goes off-hook, the phone at the other end instantly rings. No dialing is involved and therefore telephone sets without dials are sometimes used.
The Hayes command set (also known as the AT command set) is a specific command language originally developed by Dale Heatherington and Dennis Hayes [1] [2] for the Hayes Smartmodem in 1981. The command set consists of a series of short text strings which can be combined to produce commands for operations such as dialing, hanging up, and ...
"If you'd like to make a call, please hang up and try again. If you need help, hang up and then dial your operator. This is a recording."). A single burst of off-hook tone is sometimes used to indicate to a party that the call is being transferred, notably at 1-800-BELL-SOUTH (800-235-5768).
Japanese "Dial Q2" premium-rate telephone numbers start with 0990. S, M: used for sadism and masochism respectively, often referring to mild personality traits rather than sexual fetishes. "SM" is also used for sadomasochism, instead of "S&M" used in English, in a more sexual context. W: The English word "double."
Dialcom Inc. was a United States corporation which developed the world's first commercial electronic mail service. It was founded in 1970 by Robert F. Ryan and was sold to ITT Corporation in 1982, becoming ITT Dialcom.
The most commonly known examples are emergency telephone numbers such as 9-9-9, 1-1-2 and 9-1-1.Other services may also be available through abbreviated dialing numbers, such as the other of the eight N11 codes of the North American Numbering Plan (NANP) besides 9-1-1. [1]