Table Of Contents

Enterprise Application Interoperability for H.323-to-SIP and SIP-to-SIP

Finding Feature Information

Configuration of Enterprise Application Interoperability for H.323-to-SIP and SIP-to-SIP Features

Enterprise Application Interoperability for H.323-to-SIP and SIP-to-SIP

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Revised: October 20, 2010

First Published: November 25, 2009

Last Updated: October 20, 2010

This Cisco Unified Border Element is a special Cisco IOS software image that provides a network-to-network interface point for billing, security, call admission control, quality of service, and signaling interworking. This chapter describes basic gateway functionality, software images, topology, and summarizes supported features.

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Activation Cisco Product Authorization Key (PAK)—A Product Authorization Key (PAK) is required to configure some of the features described in this guide. Before you start the configuration process, please register your products and activate your PAK at the following URL http://www.cisco.com/go/license.

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Finding Feature Information

For the latest feature information and caveats, see the release notes for your platform and software release. To find information about the features documented in this module, and to see a list of the releases in which each feature is supported, see the "Cisco Unified Border Element Features Roadmap" section on page 3.

Use Cisco Feature Navigator to find information about platform support and Cisco IOS software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.

Configuration of Enterprise Application Interoperability for H.323-to-SIP and SIP-to-SIP Features

This chapter contains the following configuration topics:

Cisco UBE (Enterprise) Prerequisites and Restrictions

•Prerequisites for Cisco Unified Border Element

•Restrictions for Cisco Unified Border Element

Application specific interworking notes

•Support for SIP 181 Call is Being Forwarded Message

•Support for Expires Timer Reset on Receiving or Sending SIP 183 Message

Additional References

Glossary

Feature Information for Cisco UBE Protocol-Independent Features and Setup