BorderWare firewall fights VOIP threats

Wednesday, 15 September 2004, 12:08 AM EST

BorderWare Technologies Inc. has joined Ingate Systems AB and others in providing an edge solution to the external threat problem in voice-over-IP PBXes.

The Toronto-based company said Tuesday that it is shipping its new SIPassure-400 firewall, which is designed to keep out traditional threats to the enterprise and also threats unique to VOIP. The firewall is designed to support up to 1000 SIP (Session Initiation Protocol) users.

A specialized firewall is required because traditional firewalls normally are unable to pass SIP signaling information, effectively preventing voice calls outside the enterprise. SIP firewalls are VOIP-aware and, in addition to passing SIP packets, look for threats such as malformed messages, voicemail attacks, spoofing, session hijacking and, of course, SIP spam (a problem that has yet to surface).

By Wayne Rash at eWeek.

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