Cisco VIC-4FXS/DID Four-port FXS Voice/Fax Interface Card

Cisco voice interface cards (VICs) support voice technologies. VICs can beinstalled in interface card slots on supported Cisco access routers or in 1-or 2-slot voice network modules that are installed in network module slots onsupported Cisco access routers.A Foreign Exchange Station (FXS)/Direct Inward Dialing (DID) interfaceconnects directly to a standard telephone, fax machine, or similar device.This interface supplies ringing voltage, dial tone, and so on to the station.This Cisco voice interface card (VIC3-4FXS/DID) is supported on the followingCisco routers: * Cisco 2800 series routers, including the Cisco 2801, Cisco 2811, Cisco 2821, and Cisco 2851 * Cisco 3800 series routers, including the Cisco 3825 and Cisco 3845 * Cisco IAD2430 series routers * Cisco UC520-x series routers