Fixed 4-port FXO and 1 port FXS analog Card

Up to 4 simultaneous PSTN calls on a single interface slot

Available in PCI and PCI Express in 2U form factor

Carrier-Grade hardware Echo Cancellation options

Includes on-board diagnostic tool kit

Supports most motherboards & servers

Linux and Windows Supported

Supports Asterisk, FreePBX, proprietary PBX, IVR and more

5 year warranty