subscriber trunk dialing

subscriber trunk dialing
   A non-American term for direct distance dialing.

IT glossary of terms, acronyms and abbreviations. . 2015.

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  • Subscriber trunk dialling — (STD, also known as subscriber toll dialling) is a term for the UK telephone system allowing subscribers to dial trunk calls without operator assistance. Terminology The term subscriber trunk dialling is used in other countries such as the… …   Wikipedia

  • Trunk vs Toll — In the US, under the purview of the Bell System, local telephone calls were free except in a few big cities, and the term toll was adopted for long distance calls because they were subject to a toll.In the UK all calls were chargeable and the… …   Wikipedia

  • Direct distance dialing — (DDD) or direct dial is a telecommunications term for a network provided service feature in which a call originator may, without operator assistance, call any other user outside the local calling area. DDD requires more digits in the number… …   Wikipedia

  • Direct inward dialing — (DID), also called direct dial in (DDI) in Europe and Oceania, is a feature offered by telephone companies for use with their customers private branch exchange (PBX) systems. In DID service the telephone company provides one or more trunk lines… …   Wikipedia

  • Telephone number — A telephone number or phone number is a sequence of digits used to call from one telephone line to another in a public switched telephone network. When telephone numbers were invented, they were short as few as one, two or three digits and were… …   Wikipedia

  • Linked numbering scheme — A Linked Numbering Scheme (LNS) is a telephone numbering plan applied to an area of the country where calling between lines on a number of adjacent exchanges is done without using a dialing code.The largest LNS in the UK is that for the London… …   Wikipedia

  • Communications in India — This article is about communications in India. For a more general coverage of media in India, see Media of India. The Republic of India possesses a diversified communications system that links all parts of the country by Internet, telephone,… …   Wikipedia

  • STD — Standard (Governmental » Military) Standard (Medical » Physiology) * Sexually Transmitted Disease (Medical » Physiology) * Sexually Transmitted Disease (Community » Educational) * Short Term Disability (Governmental » US Government) * Sao Tome… …   Abbreviations dictionary

  • STD — comp. abbr. Subscriber Trunk Dialling abbr. Secondary Transmitted Data abbr. SeT Direction (flag) (Assembler) abbr. State Transition Diagram abbr. Subscriber Trunk Dialing abbr. Suspend To Disk (BIOS, ACPI) comp. abbr. Set Direction Flag comp.… …   United dictionary of abbreviations and acronyms

  • Dual-tone multi-frequency signaling — One of the few production telephone DTMF keypads with all 16 keys, from an Autovon Telephone. The column of red keys produces the A, B, C, and D DTMF events. Dual tone multi frequency signaling (DTMF) is used for telecommunication signaling over… …   Wikipedia

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