Centrex or PBX The Impact of IP

Centrex or PBX: The Impact of IP (Telecommunications Library) by John R. Abrahams
English | 1 Mar. 2003 | ISBN: 158053497X | 161 Pages | CHM | 4 MB

A reference for those who are responsible for designing, upgrading and managing data networks to carry IP telephony (voice, video and data); or for those who need help in evaluating competing IP-Centrex and IP-PBX systems; or for those who need guidance in specifying the parameters for a service level agreement for IP-Centrex.

Title: Centrex or PBX The Impact of IP
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