- Cisco Unified Border Element Enterprise Protocol-Independent Features and Setup
- SIP-to-SIP Extended Feature Functionality for Session Border Controllers
- Bandwidth-Based Call Admission Control
- Interworking Between RSVP Capable and RSVP Incapable Networks
- Cisco Resource Reservation Protocol Agent
- SIP INFO Method for DTMF Tone Generation
- DTMF Events through SIP Signaling
- Call Progress Analysis Over IP-to-IP Media Session
- Codec Preference Lists
- AAC-LD MP4A-LATM Codec Support on Cisco UBE
- Multicast Music-on-Hold Support on Cisco UBE
- Network-Based Recording
- Video Recording - Additional Configurations
- TDoS Attack Mitigation
- Cisco Unified Communications Gateway Services--Extended Media Forking
- Dynamic Payload Type Interworking for DTMF and Codec Packets for SIP-to-SIP Calls
- iLBC Support for SIP and H.323
- DSP-Based Functionality on the Cisco UBE Enterprise Including Transcoding and Transrating
- Acoustic Shock Protection
- Noise Reduction
- SIP Ability to Send a SIP Registration Message on a Border Element
- SIP Profiles
- Session Refresh with Reinvites
- SIP Stack Portability
- VoIP for IPv6
- Interworking of Secure RTP calls for SIP and H.323
- Cisco UBE Support for SRTP-RTP Internetworking
- Support for SRTP Termination
- WebEx Telepresence Media Support Over Single SIP Session
- SIP SRTP Fallback to Nonsecure RTP
- Support for Software Media Termination Point
- Cisco Unified Communication Trusted Firewall Control
- Cisco Unified Communication Trusted Firewall Control-Version II
- Finding Feature Information
- Domain-Based Routing Support on the Cisco UBE
- URI-Based Dialing Enhancements
- Additional References
- Glossary
SIP SRTP Fallback to Nonsecure RTP
The SIP SRTP Fallback to Nonsecure RTP feature enables a Cisco IOS Session Initiation Protocol (SIP) gateway to fall back from Secure Real-time Transport Protocol (SRTP) to Real-time Transport Protocol (RTP) by accepting or sending an RTP/Audio-Video Profile(AVP) (RTP) profile in response to an RTP/SAVP (SRTP) profile. This feature also allows inbound and outbound SRTP calls with nonsecure SIP signaling schemes (such as SIP URL) and provides the administrator the flexibility to configure Transport Layer Security (TLS), IPsec, or any other security mechanism used in the lower layers for secure signaling of crypto attributes.
- Finding Feature Information
- Prerequisites for SIP SRTP Fallback to Nonsecure RTP
- Configuring SIP SRTP Fallback to Nonsecure RTP
- Feature Information for SIP SRTP Fallback to Nonsecure RTP
Finding Feature Information
Your software release may not support all the features documented in this module. For the latest caveats and feature information, see Bug Search Tool and 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 feature information table.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
Prerequisites for SIP SRTP Fallback to Nonsecure RTP
Cisco Unified Border Element
Cisco IOS Release 12.4(22)T or a later release must be installed and running on your Cisco Unified Border Element.
Cisco Unified Border Element (Enterprise)
Cisco IOS XE Release 3.1S or a later release must be installed and running on your Cisco ASR 1000 Series Router.
Configuring SIP SRTP Fallback to Nonsecure RTP
To enable this feature, see the "Configuring SIP Support for SRTP" section of the Cisco IOS SIP Configuration Guide, Release 15.1 at the following URL: http://www.cisco.com/en/US/docs/ios/voice/sip/configuration/guide/sip_cg-srtp_ps10592_TSD_Products_Configuration_Guide_Chapter.html
Detailed command information for the srtp, srtp negotiate, and voice-class sip srtp negotiatecommands is located in the Cisco IOS Voice Command Reference http://www.cisco.com/en/US/docs/ios/voice/command/reference/vr_book.html
Feature Information for SIP SRTP Fallback to Nonsecure RTP
The following table provides release information about the feature or features described in this module. This table lists only the software release that introduced support for a given feature in a given software release train. Unless noted otherwise, subsequent releases of that software release train also support that feature.
Use Cisco Feature Navigator to find information about platform support and Cisco software image support. To access Cisco Feature Navigator, go to www.cisco.com/go/cfn. An account on Cisco.com is not required.
|
Feature Name |
Releases |
Feature Information |
|---|---|---|
|
SIP SRTP Fallback to Nonsecure RTP |
12.4(22)T |
The SIP SRTP Fallback to Nonsecure RTP feature enables a Cisco IOS Session Initiation Protocol (SIP) gateway to fall back from SRTP to RTP by accepting or sending an RTP/AVP(RTP) profile in response to an RTP/SAVP(SRTP) profile. This feature also allows inbound and outbound SRTP calls with nonsecure SIP signaling schemes (such as SIP URL) and provides the administrator the flexibility to configure TLS, IPsec, or any other security mechanism used in the lower layers for secure signaling of crypto attributes. The following commands were introduced or modified: srtp (voice), srtp negotiate, and voice-class sip srtp negotiate |
|
SIP SRTP Fallback to Nonsecure RTP |
Cisco IOS XE Release 3.1S |
The SIP SRTP Fallback to Nonsecure RTP feature enables a Cisco IOS Session Initiation Protocol (SIP) gateway to fall back from SRTP to RTP by accepting or sending an RTP/AVP(RTP) profile in response to an RTP/SAVP(SRTP) profile. This feature also allows inbound and outbound SRTP calls with nonsecure SIP signaling schemes (such as SIP URL) and provides the administrator the flexibility to configure TLS, IPsec, or any other security mechanism used in the lower layers for secure signaling of crypto attributes. The following commands were introduced or modified: srtp (voice), srtp negotiate, and voice-class sip srtp negotiate |
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