General Dynamics does secure VOIP

General Dynamics C4 Systems, based in Scottsdale, Ariz., said it would incorporate Cisco Systems' Skinny Client Control Protocol in its Sect'ra vIPer Phone. The vIPer is a voice-over-IP device designed to be used on secure networks. SCCP is Cisco's proprietary terminal control protocol that works with the company's CallManager platform. The vIPer also supports the Session Initiation Protocol, which has become an industry standard for initiating and managing VOIP connections


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