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- Configure Tcl IVR Applications
- Session Refresh with Reinvites
- Call Escalation from Voice to Video
- Configure and Troubleshoot DNS Resolution
- Matching Inbound Dial Peers by URI of Incoming SIP Calls
- URI-Based Dialing Enhancements
- Multiple Pattern Support on a Voice Dial Peer
- Outbound Dial Peer Group as an Inbound Dial-Peer Destination
- Inbound Leg Headers for Outbound Dial-Peer Matching
- Server Groups
- Domain-Based Routing
- ENUM Enhancement per Kaplan Draft RFC
- Configure Call Routing Logic on Cisco UBE using the History-info Header
- Cisco Unified Border Element Intercluster Lookup Service
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- SIP Stack Portability
- SIP Session Timer Support
- SIP Core SIP Technology Enhancements
- SIP-to-SIP Basic Functionality for Session Border Controller
- SIP-to-SIP Supplementary Services for Session Border Controller
- SIP-to-SIP Extended Feature Functionality for Session Border Controllers
- Configure an Error Response Code upon an Out-of-Dialog OPTIONS Ping Failure
- SIP Enhanced 180 Provisional Response Handling
- Configure SIP 181 Call is Being Forwarded Message
- SIP UPDATE Message per RFC 3311
- Expires Timer Reset on Receiving or Sending SIP 183 Message
- Selective Filtering of Outgoing Provisional Response on the Cisco Unified Border Element
- RFC 4040-Based Clear Channel Codec Negotiation for SIP Calls
- Transparent Tunneling of QSIG and Q.931
- SIP History INFO
- Multiple Registrars on SIP Trunks
- Configuring SIP Error Message Pass Through
- SIP INFO Method for DTMF Tone Generation
- DTMF Events through SIP Signaling
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- Basic SIP Configuration
- Configurable SIP Parameters via DHCP
- Delayed Offer to Early Offer
- SIP: RFC 2782 Compliance with DNS SRV Queries
- Mid-call Signaling
- Early Dialog UPDATE Block
- Forked 18x Responses
- Pass-Through of Unsupported Content Types in SIP INFO Messages
- Support for PAID, PPID, Privacy, PCPID, and PAURI Headers
- Dynamic REFER Handling
- Cause Code Mapping
- Interworking Between RSVP Capable and RSVP Incapable Networks
- Cisco Resource Reservation Protocol Agent
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- Codec Support and Restrictions
- Codec Preference Lists
- Payload Type Interoperability
- Transcoding Configuration
- Transrating Configuration
- Call Progress Analysis
- Fax Detection
- Video Suppression
- ICE-Lite Support
- NAT Traversal using RTP Keepalive
- Configure Report Generation
- Multicast Music-on-Hold Support on Cisco UBE
- iLBC Support for SIP
- Acoustic Shock Protection
- Noise Reduction
- WebEx Telepresence Media Support Over Single SIP Session
- Configuring RTP Media Loopback for SIP Calls
- Configuring DSCP Policing and Media Bandwidth Policing
- V150.1 MER Support in SDP Passthrough Mode
- Pulse Code Modulation (PCM) Audio Capture
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- High Availability on Cisco 4000 Integrated Services Routers and Cisco Catalyst 8000 Series Edge Platforms
- High Availability on Cisco ASR 1000 and Cisco Catalyst 8000 Series Routers
- High Availability on Cisco C8000V Series Cloud Services Routers
- DSP High Availability Support
- Stateful Switchover Between Redundancy Paired Intra or Inter-box Devices
- CVP Survivability TCL support with High Availability
Cisco Unified Border Element Configuration Guide - Cisco IOS XE 17.6 Onwards
Bias-Free Language
The documentation set for this product strives to use bias-free language. For the purposes of this documentation set, bias-free is defined as language that does not imply discrimination based on age, disability, gender, racial identity, ethnic identity, sexual orientation, socioeconomic status, and intersectionality. Exceptions may be present in the documentation due to language that is hardcoded in the user interfaces of the product software, language used based on RFP documentation, or language that is used by a referenced third-party product. Learn more about how Cisco is using Inclusive Language.
- Updated:
- April 25, 2026
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