Skype for Business: PSTN Calling

One of the areas where Microsoft’s Lync and Skype for Business products have had the most success is in replacing business phone systems (usually known as private branch exchange, or PBX, systems). This success has come about because Skype for Business has grown to offer a robust feature set that matches or exceeds what legacy PBX systems offer, combined with a thriving ecosystem of devices and add-on products and all the benefits that come from its integration with Windows, Active Directory, Exchange and SharePoint.

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