Table Of Contents
Cisco Unified Border Element (Enterprise) SIP Support
Finding Feature Information
Cisco Unified Border Element (Enterprise) SIP Support Features
Cisco Unified Border Element (Enterprise) SIP Support
Revised: March 30, 2011
First Published: November 25, 2009
Last Updated: March 30, 2011
This Cisco Unified Border Element (Enterprise) is a special Cisco IOS XE software image that runs on Cisco ASR1000. It 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.
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.
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 XE software image support. To access Cisco Feature Navigator, go to http://www.cisco.com/go/cfn. An account on Cisco.com is not required.
Cisco Unified Border Element (Enterprise) SIP Support Features
This chapter contains the following configuration topics:
Cisco UBE (Enterprise) Prerequisites and Restrictions
•Prerequisites for Cisco Unified Border Element (Enterprise)
•Restrictions for Cisco Unified Border Element (Enterprise)
Basic SIP Set-up
•SIP—Core SIP Technology Enhancements
•Reporting End-of-Call Statistics in SIP BYE Message
SIP Parameter Settings
•SIP—Configurable Hostname in Locally Generated SIP Headers
•SIP Parameter Modification
•SIP—Session Timer Support
•Adjustable Timers for REGISTRATION Refresh and Retries
SIP Protocol Handling and Supplementary Services
•SIP-to-SIP Basic Feature Functionality for Session Border Controller
•SIP-to-SIP Extended Feature Functionality for Session Border Controllers
•SIP-to-SIP Supplementary Services for Session Border Controller
•SIP - DNS SRV RFC2782 Compliance
•Out-of-dialog SIP OPTIONS Ping
•Cisco Unified Border Element Support for Configuring an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure
•SIP—INFO Method for DTMF Tone Generation
•SIP—Enhanced 180 Provisional Response Handling
•Configuring Support for SIP 181 Call is Being Forwarded Message
•Support for Expires Timer Reset on Receiving or Sending SIP 183 Message
•Configuring Selective Filtering of Outgoing Provisional Response on the Cisco Unified Border Element, page
•RFC 4040-Based Clear Channel Codec Negotiation for SIP Calls
•Support for PAID, PPID, Privacy, PCPID, and PAURI Headers on the Cisco Unified Border Element
•Cisco Unified Border Element Support for Configurable Pass-through of SIP INVITE Parameters
•Transparent Tunneling of QSIG and Q.931 over SIP TDM Gateway and SIP-SIP Cisco Unified Border Element
•SIP Diversion Header Enhancements
•History INFO to Diversion Header
•Hiding the Internal Topology Information Embedded Within the History-info Header at the Cisco UBE
•Call Routing logic on Cisco UBE using the History-info Header
•Reporting End-of-Call Statistics in SIP BYE Message
•Configuring SIP Message, Timer, and Response Features
SIP Registration & Authentication
•SIP—Ability to Send a SIP Registration Message on a Border Element
•Support for Multiple Registrars on SIP Trunks
SIP normalization
•SIP Parameter Modification
Additional References
Glossary
Feature Information for Cisco UBE (Enterprise) SIP Support,
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