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off premises extension (OPX)

An Off Premises Extension (OPX) is a leased line that connects telephones in remote offices directly to the PBX in the central office. The telephones are treated functionally as if they were connected directly to the private branch exchange (PBX).

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Englisch: off premises extension - OPX
Updated at: 11.03.2008
#Words: 40
Translations: DE