Using standard Personal Computer (PC) hardware along with OpenVox A800P PCI cards allows home users and business customers alike to build inexpensive Internet Protocol Private Branch Exchange (IP PBX) platforms. The A800P is a full-length, 8-port Peripheral Component Interconnect (PCI) card and is fully compatible with Digium® TDM800P card and modules. The A800P is compatible with leading open source IP PBX software such as Asterisk®, Trixbox®, and Elastix® (OpenVox are an Elastix® Strategic partner), which support all the sophisticated features of expensive high-end PBX/Voicemail platforms. OpenVox are a Fonality® Authorized / Certified Ecosystem (FACE) partner and the OpenVox A800P is officially certified for use with Trixbox®.