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  • Extension (telephone)

    serch.it?q=Extension-(telephone)

    In residential telephony, an extension telephone is an additional telephone wired to the same telephone line as another. In middle 20th century telephone jargon, the first telephone on a line was a "Main Station" and subsequent ones "Extensions". Such extension phones allow making or receiving calls in different rooms, for example in a home, but any incoming call would ring all extensions and any one extension being in use would cause the line to be busy for all users. Some telephones intended for use as extensions have built in intercom features; a key telephone system for a small business may offer two to five lines, lamps indicating lines already in use, the ability to place calls on 'hold' and an intercom on each of the multiple extensions. In business telephony, a telephone extension may refer to a phone on an internal telephone line attached to a private branch exchange (PBX) or Centrex system. The PBX operates much as a community switchboard does for a geographic telephone numbering plan and allows multiple lines inside the office to connect without each phone requiring a separate outside line.

  • Telephone numbers in Belgium

    serch.it?q=Telephone-numbers-in-Belgium

    A telephone number in Belgium is a sequence of nine or ten digits dialed on a telephone to make a call on the Belgian telephone network. Belgium is under a closed telephone dialing plan, meaning that the full national number must be dialed for all calls, but it retains the trunk code, '0', for all national dialling.Exception: Some "special services" use 3 or 4 digits with no area or trunk codes: e.g.; 112 and 100 (fire brigade and ambulance); 101 (police); 1307 (info in French) or 1207 (info in Dutch), etc. "112" is an emergency number for contacting the fire brigade, ambulance and police in all 28 countries of the European Union. Operators will help you in the native language, in English, or the language of any neighbouring country. Calls to this number for contacting the police are forwarded to "101", losing response time. The Telephone numbering plan is open, meaning that numbers have varying lengths (9 digits for landline phones of the formerly monopolistic company Belgacom, and 10 digits for other numbers incl. GSM cellphones).

  • Mobile identification number

    serch.it?q=Mobile-identification-number

    The mobile identification number (MIN) or mobile subscription identification number (MSIN) refers to the 10-digit unique number that a wireless carrier uses to identify a mobile phone, which is the last part of the international mobile subscriber identity (IMSI). The MIN is a number that uniquely identifies a mobile phone working under TIA standards for cellular and PCS technologies. (e.g. EIA/TIA–553 analog, IS–136 TDMA, IS–95 or IS-2000 CDMA). It can also be called the MSID (Mobile Station ID) or IMSI_S (Short IMSI). Definition: The mobile identification number (MIN) is a number that is derived from the 10-digit directory telephone number assigned to a mobile station. The rules for deriving the MIN from the 10-digit telephone number are given in the IS-95 standard. MIN1 is the first or least significant 24 binary digits of the MIN. MIN2 is the second part of the MIN containing the 10 most significant binary digits. MIN1, and the ESN, along with other digital input, are used during the authentication process. The MIN is used to identify a mobile station. In the case of analog cellular, the MIN is used to route the call. In most second generation systems, temporary numbers are assigned to the handset when routing calls as a security precaution.

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