Foreword

This second edition of Cisco CallManager Fundamentals introduces several key additions as well as major revisions to one of the most successful books ever published related to IP telephony in general and Cisco CallManager in particular.

Since the first edition was published, the industry has continued to move at Internet speeds in spite of a downturn in the economy. Cisco Systems now generates more than $1B in revenues from IP telephony and regularly ships 200,000+ phones per month (as of late 2004). Development, test, and support staff has more than doubled.

In July of 1997, the engineering group from Selsius Systems, a small start-up in Dallas, Texas, cofounded by David Tucker and me, connected two normal-appearing phones into a 10-Mbps ...

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