Chapter 8 Configuring Survivable Remote Site Telephony - Cisco WS C4224V 8FXS - 200Mbps Ethernet Switch Software Configuration Manual

Configuring Survivable Remote Site
Telephony
Survivable Remote Site Telephony (SRST) provides Cisco CallManager with
fallback support for Cisco IP Phones that are attached to the Catalyst 4224 Access
Gateway Switch (Catalyst 4224) on your local Ethernet.
SRST enables the Catalyst 4224 to provide call handling support for
Cisco IP Phones when a Cisco IP Phones lose connection to the remote primary,
secondary, or tertiary Cisco CallManager or when the WAN connection is down.
This section contains following topics:
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OL-2031-02
Overview of Survivable Remote Site Telephony, page 8-2
Configuring Survivable Remote Site Telephony, page 8-7
Verifying Survivable Remote Site Telephony, page 8-9
Troubleshooting Survivable Remote Site Telephony, page 8-10
Monitoring and Maintaining Survivable Remote Site Telephony, page 8-11
SRST Configuration Example, page 8-12
Catalyst 4224 Access Gateway Switch Software Configuration Guide
C H A P T E R
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