Cisco WS C4224V 8FXS - 200Mbps Ethernet Switch Software Configuration Manual page 29

Chapter 1 Product Overview
Solution
OL-2031-02
The Catalyst 4224 can be deployed as part of a centralized call processing
network with a Cisco CallManager and Survivable Remote Site Telephony
(SRST) software that provides Ethernet switching, IP routing, VoIP gateway, and
IP telephony services for a small branch office.
Centralized call processing allows network administrators to deploy and manage
IP telephony applications at the corporate headquarters or the corporate data
center. Deploying and managing key systems or PBXs in branch offices is no
longer necessary. Centralized call processing provides remote branch office users
with access to IP telephony applications at centralized locations over the IP WAN.
Centralized call processing has the following benefits:
Centralized configuration and management
•
Remote access at to all Cisco CallManager features
•
IT staff not required at each remote site
•
Ability to rapidly deploy applications for remote users
•
Easy upgrades and maintenance
•
Lower total cost of ownership (TCO)
•
Figure 1-1 shows the Catalyst 4224 at a remote site with a centrally deployed
Cisco CallManager at corporate headquarters.
Catalyst 4224 Access Gateway Switch Software Configuration Guide
Solution
1-3