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OpenVox A400E04 features four FXO ports. This card is modular, allowing you to interchange, remove or replace the ports as your network requires. The OpenVox A400E04 telephony card includes a PCI Express interface.
OpenVox's A400E series cards, including the A400E04, is compatible with available OpenVox FXS-100 and FXO-100 modules, and Digium X100M and S100M modules. This card is interoperable with many open source and proprietary platforms, including Asterisk, trixbox, Elastix and more.
