OpenVox is a manufacturer of FXS, FXO and T1/E1 ports for open source telephony applications. All of OpenVox’s PCI cards are designed to work out of the box with Asterisk IP PBX the premier open source IP PBX. OpenVox is expanding open source communications by reducing the price point for open source IP PBX’s and providing several main board interfaces, standard PCI, PCI Express & MiniPCI.

via OpenVox = Cost Effective Asterisk Solutions.