Telephony Systems - PBX White Papers
ISDN Centrex
Overview
Centrex service was developed as a Central Office (CO) based alternative to Private Branch Exchanges (PBXs) for business voice solutions. Although originally targeted at very large
businesses, Centrex is used today by many small and medium-sized businesses as well. With the addition of ISDN's BRI capabilities to Centrex, Centrex now offers a competitive set of advanced
voice features. This White Paper compares the benefits of ISDN Centrex and PBX approaches and explores customer perceptions of Centrex service.
This White Paper explores the issues that a business encounters in determining whether to use ISDN Centrex or PBX for their voice solution. These issues include feature availability,
operational support, price, and total cost of ownership.
For most corporate users, data to the desktop is satisfied with LAN connections to the
Intranet/Internet. Such users typically would not utilize BRI's B-channel circuit-switched data or D-channel X.25 packet data. Consequently, BRI's data capabilities are not emphasized in this
White Paper.
| Publisher | Telcordia Technologies | File Format | PDF, requires Acrobat Rdr 5 |
|---|---|---|---|
| Date Published | March 2001 | Downloads | 17 |
| Format | White Papers | ||
| Topics | |||
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