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The OpenVox A400M is the industry's first analog telephony card with a mini PCI interface. Scale the A400M to your network's specifications, featuring support for up to four interchangeable FXO and FXS modules. The A400M from OpenVox provides four concurrent analog channels with high-quality voice and audio.
Expand the OpenVox A400M with available FXO-100 and FXS-100 modules, or with compatible Digium X100M and S100M modules. Interface this card with many compatible open source or proprietary phone systems, including Asterisk, trixbox and Elastix.
