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31. A PBX is a small typically privately-owned switch, which provides many of the advanced voice features available in businesses. It interfaces to public telephone switches via special protocols.

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This web site has been created based exclusively on the use of Halaal Software and Halaal Internet Application Services. It is part of the By* Federation of Autonomous Libre Services which in turn are part of the Halaal/Libre By* Digitial Ecosystem which incorporate the following software components: