Cisco CallManager Express Basic Concepts – Part 1

Cisco Call Manager Express – UC500 Basic Concepts. This article explains the basic CCME concepts to help the reader understand how the technology works. Learn how Call Manager Express works, PSTN and ISDN Interfaces it supports, how DSPs are used, codecs, what ephones and ephones-dn are, how IP Phones are connected to the network, how and why we isolate VoIP traffic and how calls are actually performed, plus much much more!

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