R&R Supported Standards

Our Standards

R&R Supported Standards



Standard Description
GSMA IPX IP-based interconnection for wireless networks





Standard Description
RFC 2327 SDP
RFC 2617 HTTP Authentication: Basic and Digest Access Authentication
RFC 2671 Extension Mechanisms for DNS (EDNS0)
RFC 2833 RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
RFC 2865 Remote Authentication Dial In User Service (RADIUS)
RFC 2976 SIP INFO Method
RFC 3087 Control of Service Context using SIP Request-URI
RFC 3204 MIME media type ISUP
RFC 3261 Session Initiation Protocol
RFC 3262 Reliability of Provisional Responses
RFC 3264 Offer/Answer Model
RFC 3265 SIP-Specific Event Notification
RFC 3267 (2002) Real-time Transport Protocol RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs
RFC 3311 SIP UPDATE method
RFC 3312 Integration of Resource Management and SIP
RFC 3313

Private Session Initiation Protocol (SIP) Extensions for Media Authorization

NOTE:  Supported in pass-through mode only.

RFC 3323 Privacy Mechanism
RFC 3324 Short Term Requirements for Network Asserted Identity
RFC 3325 Asserted Identity
RFC 3326 (2002) The Reason Header Field for the Session Initiation Protocol (SIP)
RFC 3327 SP Extension Header Field for Registering Non-Adjacent Contacts
RFC 3372 SIP-I
RFC 3389 Real-time Transport Protocol (RTP) Payload for Comfort Noise (CN)
RFC 3398 ISUP to SIP Mapping
RFC 3411 An Architecture for Describing SNMP Management Frameworks
RFC 3412 Message Processing and Dispatching for SNMP
RFC 3413 Simple Network Management Protocol (SNMP) Applications
RFC 3414 User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)
RFC 3415 View-based Access Control Model (VACM) for the SNMP
RFC 3418 Management Information Base (MIB) for the SNMP
RFC 3420 Internet Media Type message/sipfrag
RFC 3428 SIP Extension for Instant Messaging
RFC 3515 SIP Refer Method
RFC 3550 (2003) RTP: A Transport Protocol for Real-Time Applications
RFC 3551 (2003) RTP Profile for Audio and Video Conferences with Minimal Control
RFC 3581 SIP Extension for Symmetric Response Routing
RFC 3584 Coexistence between Version 1, 2 and 3 of the Internet-standard Network Management Framework
RFC 3605 RTCP Attribute in SDP
RFC 3608 Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During Registration
RFC 3680 A Session Initiation Protocol (SIP) Event Package for Registrations
RFC 3711 Secure Real-time Transport Protocol
RFC 3824 Using E164 numbers with the Session Initiation Protocol (SIP)
RFC 3826 The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP User-based Security Model
RFC 3840 Indicating User Agent Capabilities in SIP
RFC 3841 Caller Preferences for the Session Initiation Protocol (SIP)
RFC 3842 A Message Summary and Message Waiting Indication Event Package for the SIP
RFC 3891 The Session Initiation Protocol (SIP) “Replaces” Header
RFC 3892 The SIP Referred-By Mechanism
RFC 3960 Early Media and Ringback Tone Generation in the Session Initiation Protocol
RFC 3966 The tel URI for Telephone Numbers
RFC 4022 Management Information Base for the Transmission Control Protocol (TCP)
RFC 4028 Session Timers in SIP
RFC 4113 Management Information Base for the User Datagram Protocol (UDP)
RFC 4123 Session Initiation Protocol (SIP)-H.323 Interworking Requirements
RFC 4145 TCP-Based Media Transport in the Session Description Protocol (SDP)
RFC 4244 An Extension to the Session Initiation Protocol (SIP) for Request History Information
RFC 4293 Management Information Base for the Internet Protocol (IP)
RFC 4412 Communications Resource Priority for the Session Initiation Protocol (SIP)
RFC 4458 Session Initiation Protocol (SIP) URIs for Applications – Voicemail and Interactive Voice Response (IVR)
RFC 4566 Session Description Protocol
RFC 4567 Key Management Extensions for SDP and RTSP
RFC 4568 SDP Security Descriptions for Media Streams
RFC 4572 Connection-Oriented Media Transport over the Transport Layer Security   (TLS) Protocol in the Session Description Protocol (SDP)
RFC 4573 MIME Type Registration for RTP Payload Format for H.224
RFC 4583 Session Description Protocol (SDP) Format for Binary Floor Control Protocol (BFCP) Streams
RFC 4585 Extended RTP Profile for RTCP-Based Feedback (RTP/AVPF)
RFC 4753 ECP Groups for IKE and IKEv2
RFC 4861 Neighbor Discovery for IP version 6 (IPv6)
RFC 4975 Message Session Relay Protocol (MSRP)
RFC 5104 Codec Control Messages in the RTP Audio-Visual Profile with Feedback (AVPF)
RFC 5168 XML Schema for Media Control
RFC 5227 IPv4 Address Conflict Detection
RFC 5343 Simple Network Management Protocol (SNMP) Context EngineID Discovery
RFC 5547 SDP Offer/Answer Mechanism To Enable File Transfer
RFC 5590 Transport Subsystem for the Simple Network Management Protocol (SNMP)
RFC 5626 Managing Client-Initiated Connections in SIP
RFC 5627 Obtaining and Using Globally Routable User Agent URIs (GRUUs) in the Session Initiation Protocol (SIP)
RFC 5705 Keying Material Exporters for Transport Layer Security (TLS)

RFC 5763


Framework for Establishing a Secure Real-time Transport Protocol (SRTP) Security Context Using Datagram Transport Layer Security (DTLS)
RFC 5764 Datagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP)
RFC 5806 Diversion Indication in SIP
RFC 5996 Internet Key Exchange Protocol Version 2 (IKEv2)
RFC 6044 Mapping and Interworking of Diversion Information between Diversion and History-Info Headers in SIP
RFC 6135 Alternative Connection Model for MSRP UA
RFC 6140 RFC 6140—Registration for Multiple Phone Numbers in the Session Initiation Protocol (SIP)
RFC 6223 Indication of Support for Keep-Alive
RFC 6337 Session Initiation Protocol (SIP) Usage of the Offer/Answer Model
RFC 6347 Datagram Transport Layer Security Version 1.2
RFC 6442 Location Conveyance for the Session Initiation Protocol
RFC 6714 Connection Establishment for Media Anchoring
RFC 6716 Definition of the Opus Audio Codec
RFC 6733 Diameter Base Protocol
RFC 6891 Extension Mechanisms for DNS (EDNS (0)
RFC 7135 Registering a SIP Resource Priority Header Field Namespace for Local Emergency Communications
draft-yu-tel-url-08 New Parameters for the ‘tel’ URL to Support Number Portability and Freephone Service
draft-ietf-payload-rtp-opus-03 RTP Payload Format for Opus Speech and Audio Codec



Standard Description
G.722.1 Low-complexity coding at 24 and 32 kbit/s for hands-free operation in systems with low frame loss
Q.1912.5 SIP Interworking
T.38 v.3 Procedures for real-time Group 3 facsimile communication over IP networks




Standard Description
08-001 v2 Interim VoIP Architecture for Enhanced 9-1-1 Services (i2)


SIP Forum


Standard Description
SIPConnect 1.0 Direct IP peering between SIP-enabled IP PBXs and VoIP service provider networks
SIPConnect 1.1  SIP-PBX / Service Provider Interoperability




Standard Description
3GPP TS 24.229 v11.5.0 IP multimedia call control protocol based on SIP and SDP
3GPP TS 23.167 IP Multimedia Subsystem (IMS) emergency sessions.
3GPP TS 26.114 IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction
3GPP TS 29.214 Policy and Charging Control over Rx reference point
3GPP TS 32.260 IP Multimedia Subsystem (IMS) charging
3GPP TS 32.299 Diameter Charging Applications
3GPP TS 33.328 IP Multimedia Subsystem (IMS) media plane security