OpenVox B100P is a half length/height ISDN (Integrated Services Digital Network) BRI (Basic Rate Interface) PCI (Peripheral Component Interconnect) card. The B100P provides a single ISDN BRI S/T port, which makes it an ideal cost effective option for SOHO (Small Office Home Office) and small enterprise applications. OpenVox are a Fonality® Authorized / Certified Ecosystem (FACE) partner and the OpenVox B100P is officially certified for use with Trixbox®. The B100P 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. Although developed primarily for Open Source IP PBX Asterisk® based applications, the B100P can be used for any Linux applications/systems that require ISDN connectivity, e.g. Linux ISDN firewalls, VoIP gateways and routers.