High Quality Content by WIKIPEDIA articles! The Avaya Secure Router 4134 (or SR-4134) in telecommunications and computer networking technologies is a device manufactured by Nortel ( now acquired by Avaya) that combines the functions of WAN Routing, stateful firewall security, Ethernet switching, IP telephony, and Microsoft mediation into one device.The SR-4134 is normally installed at a headquarters, regional or branch office and connected across the WAN to an SR-3120, SR-2330, SR-1004, SR-1002, or SR-1001 at a Regional, branch or other smaller remote location.

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