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Table Of Contents
Cisco IOS SIP SRST Feature Roadmap
Cisco IOS SIP SRST Feature Roadmap
This chapter contains a summary of Cisco IOS Session Initiation Protocol (SIP) Survivable Remote Site Telephony (SRST) features and the location of feature documentation.
Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. Access Cisco Feature Navigator at http://www.cisco.com/go/fn. You must have an account on Cisco.com. If you do not have an account or have forgotten your username or password, click Cancel at the login dialog box and follow the instructions that appear.
Note
The Cisco IOS Voice Configuration Library includes a standard library preface, a glossary, and feature and troubleshooting documents and is located at http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vcl.htm.
Contents
Documentation Organization
This book consists of the following chapters as shown in Table 1.
Table 1 Cisco SIP SRST Configuration Sequence
Gives a brief description of Cisco SIP SRST and provides information on the supported platforms and Cisco IP phones. In addition, it describes any prerequisites or restrictions that should be addressed before Cisco SIP SRST is configured.
Upgrading from Cisco IOS SIP SRST Version 3.0 to Version 3.4
Describes the two versions of Cisco SIP SRST. This chapter gives a brief overview of each version. In addition, Version 3.4 requires a few changes and new configurations as compared to the setup that was required for Version 3.0. This chapter includes the following tasks:
Describes features available in Version 3.0 that are also necessary for Version 3.4. Features include instructions on how to provide a backup to an external SIP proxy server by providing basic registrar services. These services are used by a SIP IP phone in the event of a WAN connection outage when the SIP phone is unable to communicate with its primary SIP proxy. This chapter includes the following tasks:
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Configuring Cisco SIP SRST Version 3.0 Features Using Redirect Mode
Describes features necessary for Version 3.0. This chapter includes the following tasks:
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Configuring Cisco SIP SRST Version 3.4 Features Using Back-to-Back User Agent Mode
Describes features available in Version 3.4. Features include Cisco SIP SRST 3.4 support for standardized RFC 3261 SIP phones. This chapter includes the following tasks:
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Feature Roadmap
Table 2 provides a summary of Cisco SIP SRST features by release.
Table 2 Cisco SIP SRST Features by Cisco IOS Release
Version 3.4
12.4(4)T
The Cisco SIP SRST Version 3.4 System Administrator Guide was created. It includes the following features:
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Version 3.2
12.3(11)T
The SIP SRST feature was updated to include additional prerequisite information, including phone and memory requirements.
Version 3.1
12.3(7)T
The SIP SRST feature was integrated into Cisco IOS Release 12.3(7)T.
Version 3.0
12.2(15)ZJ 12.3(4)T
The SIP SRST feature was introduced.
Posted: Thu Nov 10 08:41:26 PST 2005
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