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CCNA Collaboration CIVND 210-065 Official Cert Guide by Jason Ball, Brian Morgan

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Call Control

Of all the service domains, call control is the most important simply due to the fact that every other aspect of the Cisco collaboration architecture relies on it as the common foundation. Even the other service domains depend entirely on the existence of the call control plane to function.

Over the course of the evolutionary path of both voice and video technologies, call control has come in numerous flavors, including both standards-compliant and non-standards-compliant (that is, proprietary) forms. The technologies have come a long way since the creation of the first phone, the first camera (still/video), the first telephone switch, and so on. Call control from Cisco’s perspective now rests squarely upon Cisco Unified Communications ...

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