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OpenVox A400E is a modular telephony card featuring a PCI Express interface. The A400E includes four open sockets for installing available FXO or FXS modules. Interchange the modules and ports to scale this OpenVox card as you see fit. Up to four concurrent calls can be hosted on this one card, featuring carrier-quality voice and audio.
The OpenVox A400E base PCIe card is compatible with OpenVox FXO-100 and FXS-100 modules, as well as Digium X100M and S100M modules. This card is also certified and interoperable with many open source and proprietary phone systems, including Asterisk, trixbox, Elastix and more.
