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Line 1: ~~{{Orphan\|date=February 2009\|att=February 2020}}~~ In [[telephony]], '''interface functionality''' is the characteristic of interfaces that allows operators to support [[transmission (telecommunications)\|transmission]], [[Telephone exchange\|switching]], and [[Signalling (telecommunication)\|signaling]] functions identical to those used in the enhanced services provided by the [[common carrier\|carrier]].

Interface functionality: Difference between revisions