Ecessa WAN Controller Supports SIP Traffic

Ecessa announced Tuesday the release of ClariLink, a WAN link controller with specialized SIP-application management. The family of ClariLink WAN Link Controllers will be available in third quarter 2009.

ClariLink enables SIP traffic to be deployed reliably across multiple WAN and/or service provider networks for redundant link connectivity and automatic real-time failover. This ensures that call and data sessions remain active in the case of a service provider outage.

The ability to load balance SIP connections over multiple WAN links is critical for VoIP environments. ClariLink acts as a front-end controller, managing diverse WAN links and bandwidth capacities to provide a redundant SIP origination and termination solution. ClariLink includes an SIP Proxy, SIP Registration Server and Network Address Translation (NAT) Proxy that allow SIP traffic to be load-balanced with failover among multiple WAN links to ensure reliability.

“More and more businesses are showing their interest in SIP trunking services, but some concerns around reliability remain,” said Matthias Machowinski, directing analyst, Enterprise Voice & Data at Infonetics Research. “With Ecessa’s newest product, SMEs can deploy multiple WAN links, and enjoy high availability, automatic failover and link redundancy, ensuring the continued reliability of their IP network connectivity.”

A common problem businesses face with SIP communications is traversing NAT. The new ClariLink WAN link controller functions as the primary NAT device and addresses the issues with the NATing of SIP traffic – enabling SIP traffic to go over NAT environments successfully. By intelligently directing SIP traffic among multiple WAN links and/or service provider connections, ClariLink eliminates a key point-of-failure.

ClariLink distributes network traffic among multiple, diverse network links (i.e. cable, xDSL, T1, wireless, satellite, etc.) and provides aggregation (multihoming); automated inbound and intelligent outbound load balancing and failover; site failover and fallback and traffic shaping. LAN-to-LAN direct routing work in conjunction with site-to-site channel bonding that combines two or more WAN links into one large network connection to provide greater available bandwidth and reliability for large file transfers. ClariLink provides IT administrators with greater control, by allowing them to easily adapt to network changes by providing an optimization layer within their WAN at lower cost than other WAN optimization offerings.

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