DETAILS: The WIC-1B-U-V2 replaces WIC-1B-U card and offers single port ISDN WIC with integrated NT-1 that is currently supported on the Cisco 1600, 1700, 2600, 3600 and 3700 Series product families. The ability to add BRI connectivity via a WIC allows administrators to maximize valuable slot space while providing additional connectivity options, such as Ethernet, on the same module. Product Description Cisco WAN Interface Card ISDN terminal adapter - BRI U Device Type: ISDN terminal adapter Enclosure Type: Plug-in module ISDN Interface: ISDN BRI U ALTERNATE ITEM #: WIC-1B-U-V2= UPC: 0746320661070