extension, off-premise

   (OPX)
   An extension telephone or PBX station located on property not contiguous with that on which the main station or PBX is located.

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

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  • off-premise extension —    (OPX)    See extension, off premise …   IT glossary of terms, acronyms and abbreviations

  • Off Premise Extension — (often known by the acronym OPX, sometimes as Off Premise Station or OPS) is an extension telephone that terminates in a location distant from its parent PBX. OPX is generally used to provide employees with access to their company s phone system… …   Wikipedia

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  • Dial peer — A dial peer, also termed addressable call endpoint, initiates or obtains calls within a telephone network. See also VOIP Session Initiation Protocol Foreign exchange station Foreign exchange office Off Premise Extension PLAR External sources http …   Wikipedia

  • Dry loop — A dry loop (also known as a dry pair) is an unconditioned leased pair of telephone wire from a Telco. The pair does not have a dial tone or battery (continuous electric potential), as opposed to a wet pair (a line usually with no dial tone but… …   Wikipedia


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