| Trunk Line |
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| telecommunications | |
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In Telecommunications , a trunk is one of From the Federal Standard 1037C and from MIL-STD-188 and from the Code Of Federal Regulations, Telecommunications Parts 0-199:
Trunks may be used to interconnect switches, such as major, minor, public and private switches, to form networks. In popular parlance and in the UK at least a Trunk call was a long distance one as opposed to a Local call. See Subscriber Trunk Dialling and Trunk Vs Toll . TRUNKING IN AN EXCHANGE Trunking also refers to the connection of . Trunking allows a group of Inlet switches at the same time. Thus the Service Provider can provide a lesser number of circuits than might otherwise be required, allowing many users to "share" a smaller number of connections and achieve capacity savings Motorola, Trunking Communications Overview , Last accessed 13 February 2005.The Genesis Group, Trunking Basics , Last accessed 13 February 2005.. DERIVATION From an early stage in the development of telephony, the need was found for thick cables (up to around 10 cm diameter). These were usually covered in lead. Thus, both in colour and size they resembled an Elephant 's trunk. Also, since they connect Branch Offices they act much like the Trunk of a Tree . REFERENCES The correct Genesis Group link is http://www.genesisworld.com/trunking.asp |
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