Specifications

iii
Cisco IOS Survivable Remote Site Telephony Version 4.0 System Administrator Guide
CONTENTS
Cisco Unified Survivable Remote Site Telephony Feature Roadmap 1
Contents 1
Documentation Organization 1
Feature Roadmap 3
Information About New Features in Cisco Unified SRST V4.0 7
Information About New Features in Cisco SRST V3.4 9
Information About New Features in Cisco SRST V3.3 9
Information About New Features in Cisco SRST V3.2 10
Information About New Features in Cisco SRST V3.1 13
Information About New Features in Cisco SRST V3.0 13
Information About Features That Were New in Cisco SRST V2.1 18
Information About Features That Were New in Cisco SRST V2.02 20
Overview of Cisco Unified SRST 23
Contents 23
Cisco Unified SRST Description 23
H.323 Gateways and SRST 26
MGCP Gateways and SRST 26
Support for Cisco Unified IP Phones, Platforms, Cisco Unified CallManager, Signals, Languages, and
Switches
27
Finding Cisco IOS Software Releases That Support Cisco Unified SRST 27
Cisco Unified IP Phone Support 28
Platform and Memory Support 29
Cisco Unified CallManager Compatibility 29
Signal Support 29
Language Support 30
Switch Support 30
Prerequisites for Configuring Cisco Unified SRST 31
Installing Cisco Unified CallManager 31
Installing Cisco Unified SRST 31
Integrating Cisco Unified SRST with Cisco Unified CallManager 32
Restrictions for Configuring Cisco Unified SRST 33
Where to Go Next 35
Additional References 35