Foreword
In October, 1998, Cisco took a step forward in its entry into IP Telephony with the acquisition of Selsius Systems, a pioneer and innovator of next generation network PBX systems for high-quality telephony over IP networks. This began the revolution of converged data, voice and video networks rendering separate voice and data networks a thing of the past. Cisco is one of the front runners in changing the way enterprises and service providers deliver converging traditional voice, data, and video applications.
The overall IP communication industry has gained significant momentum. The original Selsius Systems product family acquired by Cisco has expanded and evolved at tremendous speed. Over four million IP phones and over three million Unity ...
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