For sale is a Cisco 4-Port Voice Fax Interface Card Module VIC3-4FXS/DID= in Excellent Used Condition. 

Product Details:

Cisco Voice Interface Cards (VICs) support voice technologies. VICs can be installed 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 on supported Cisco access routers.