The Cisco gateway is designed to convert TDM traffic from the PSTN into either H.323 or SIP based VoIP traffic. The Cisco gateway delivers built-in interactive voice response, routing, digit manipulation, and security. The Cisco gateway also supports a wide variety of PSTN protocols. Frontier is a proud reseller of used and refurbished Cisco gateways. If you don’t see what you need listed, call a representative at Frontier, or simply request a quote. 866-226-6344