Cisco CallManager Express Basic Concepts – Part 2

Cisco Call Manager Express & UC 500, UC520, UC540 Basic Concepts. This article explains the basic concepts found in CCME and UC500 series. This article covers the concept of ephone and ephone-dn. Why they are and how they are used to create extensions and assign them to IP Phones. We also explain what a codec is and take a look at the two most popular codecs G711 and G729 and explain their differences.

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