As for the Canadian school district, it moved off of a Centrex system, as well as dozens of key telephone systems in separate schools, to a VoIP network based on Nortel Networks Ltd. technology.

BellSouth this week unveiled an IP Centrex service for businesses looking to meld voice and data services.

i have a client, that obtain a new phone line, and asked, what would it take to add this new line to there existing centrex phone system?

Besides reducing Centrex costs, the in-house managed phone system lets the staff change its service more quickly than previously, according to Charles Fletcher, assistant provost for technology ...

FDNY selected Verizon Frontline to provide an advanced, secure, and reliable connectivity solution after deciding to upgrade their Centrex system.

The new system has replaced an older Centrex phone system in Boston that was turning into a hodgepodge of upgrades that didn’t suit the needs of the new owners, who bought the team three years ...

NEW YORK - Verizon Frontline today announced the completion of a communications upgrade for the New York City Fire Department (FDNY), replacing a legacy central exchange (Centrex) phone system ...