The Cisco IP/VC 3540 Series is a Gateway Module that allows 2 PRI ports to connect ISDN and supports a maximum of 30 simultaneous videoconferences with the IP and ISDN network. The IP/VC 3540 supports bandwidths of 384Kbps and audio and video encoding standards. The IP/VC 3540 is a reliable solution for users to interconnect IP based H.323 networks of LAN attached endpoints with H.320 video networks based on ISDN technology. Frontier offers used and refurbished IP/VC 3540 Gateways. Call Frontier today or simply request a quote. 866-226-6344