In this section:

Supported Standards

3GPP

Supported 3GPP Standards

StandardDescription
3GPP TS 22.228IP Multimedia Subsystem, Stage 1
3GPP TS 23.002Group Services and Systems Aspects; Network architecture
3GPP TS 23.003Numbering, Addressing and Identifications
3GPP TS 23.203Policy and charging control architecture
3GPP TS 23.207End-to-end Quality of Service (QoS) concept and architecture
3GPP TS 23.218IP Multimedia (IM) session handling; IM call model; Stage 2
3GPP TS 23.228IP Multimedia Subsystem (IMS); Stage 2
3GPP TS 23.237IP Multimedia Subsystem (IMS) Service Continuity; Stage 2
3GPP TS 23.292IP Multimedia System (IMS) centralized services; Stage 2
3GPP TS 24.147Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3
3GPP TS 24.173IMS Multimedia telephony service and supplementary services; Stage 3
3GPP TS 24.229Internet Protocol (IP) multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3
3GPP TS 24.247Messaging service using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3
3GPP TS 24.341Support of SMS over IP networks; Stage 3
3GPP TS 24.604Communication Diversion (CDIV) using IP Multimedia (IM)Core Network (CN) subsystem; Protocol specification
3GPP TS 24.605Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.606Message Waiting Indication (MWI )using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.607Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.608Terminating Identification Presentation (TIP) and Terminating Identification Restriction (TIR) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.610Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.611Anonymous Communication Rejection (ACR) and Communication Barring (CB) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.615Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol Specification
3GPP TS 24.623Extensible Markup Language (XML) Configuration Access Protocol (XCAP) over the Ut interface for Manipulating Simulation Services
3GPP TS 26.071Mandatory speech CODEC speech processing functions; AMR speech Codec; General description
3GPP TS 26.090Mandatory Speech Codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Transcoding functions
3GPP TS 26.093Mandatory speech codec speech processing functions Adaptive Multi-Rate (AMR) speech codec; Source controlled rate operation
3GPP TS 26.103Speech codec list for GSM and UMTS
3GPP TS 26.114IP Multimedia Subsystem (IMS); Multimedia telephony; Media handling and interaction
3GPP TS 26.235Packet Switched Conversational Multimedia Application; Default Codecs
3GPP TS 26.236Packet Switched Conversational Multimedia Applications; Transport Protocols
3GPP TS 29.165Inter-IMS Network to Network Interface (NNI)
3GPP TS 29.162Interworking between the IM CN subsystem and IP networks
3GPP TS 29.235Interworking between SIP-I based circuit-switched core network and other networks
3GPP TS 32.225Telecommunication management; Charging management; Charging data description for the IP Multimedia Subsystem (IMS)
3GPP TS 32.260Telecommunication management; Charging management; IP Multimedia Subsystem (IMS) charging
3GPP TS 32.225Telecommunication management; Charging management; Charging data description for IMS domain
3GPP TS 32.240Telecommunication management; Charging management; Charging architecture and principles
3GPP TS 32.260Telecommunication management; Charging management; IP Multimedia Subsystem (IMS) charging
3GPP TS 32.298Telecommunication management; Charging management; Charging Data Record (CDR) parameter description
3GPPTS 32.299Telecommunication management; Charging management; Diameter charging applications
3GPP TS 33.2033G security; Access security for IP-based services
3GPP TS 33.210IP Network Level Security
3GPP 26.4413rd Generation Partnership Project; Technical Specification Group Services and System Aspects; Codec for Enhanced Voice Services (EVS); General Overview
3GPP TS 22.2283rd Generation Partnership Project;
Technical Specification Group Services and System Aspects;
Service requirements for the Internet Protocol (IP) Multimedia core network Subsystem (IMS); Stage 1
3GPP TS 23.002Group Services and Systems Aspects; Network architecture
3GPP TS 23.0033rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Numbering, addressing and identification
3GPP TS 23.167IMS Emergency Sessions
3GPP TS 23.2033rd Generation Partnership Project;. Technical Specification Group Services and Systems Aspects; Policy and charging control architecture
3GPP TS 23.207End-to-end Quality of Service (QoS) concept and architecture
3GPP TS 23.218IP Multimedia (IM) session handling; IM call model; Stage 2
3GPP TS 23.2283rd Generation Partnership Project; Technical Specification Group Services and System Aspects; IP Multimedia Subsystem (IMS);Stage 2
3GPP TS 23.237IP Multimedia Subsystem (IMS) Service Continuity; Stage 2
3GPP TS 23.292IP Multimedia System (IMS) centralized services; Stage 2
3GPP TS 24.147Conferencing using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3
3GPP TS 24.1733rd Generation Partnership Project Technical Specification Group Core Network and Terminals;; IMS multimedia telephony communication service and supplementary services; Stage 3
3GPP TS 24.1823rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; IP Multimedia Subsystem (IMS) Customized Alerting Tones (CAT); Protocol specification
3GPP TS 24.1833rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; IP Multimedia Subsystem (IMS) Customized Ringing Signal (CRS); Protocol specification
3GPP TS 24.2293rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; IP multimedia call control protocol based on Session Initiation Protocol (SIP) and Session Description Protocol (SDP); Stage 3
3GPP TS 24.2373rd Generation Partnership Project; IP Multimedia (IM) Core Network (CN) subsystem IP Multimedia Subsystem (IMS) service continuity; Stage 3
3GPP TS 24.2393rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Flexible Alerting (FA) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.247Messaging service using the IP Multimedia (IM) Core Network (CN) subsystem; Stage 3
3GPP TS 24.2593rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Personal Network Management (PNM); Stage 3
3GPP TS 24.341Support of SMS over IP networks; Stage 3
3GPP TS 24.6043rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Communication Diversion (CDIV) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.6053rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Conference (CONF) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.606Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE; Message Waiting Indication (MWI) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.6073rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Originating Identification Presentation (OIP) and Originating Identification Restriction (OIR) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.6083rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Terminating Identification Presentation (TIP)
and Terminating Identification Restriction (TIR) using IP
Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.6103rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Communication HOLD (HOLD) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.6113rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Anonymous Communication Rejection (ACR) and Communication Barring (CB); using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.6153rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Communication Waiting (CW) using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.6163rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Malicious Communication Identification (MCID) using IP
Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.623Extensible Markup Language (XML) Configuration Access Protocol (XCAP) over the Ut interface for Manipulating Simulation Services
3GPP TS 24.6283rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals;
Common Basic Communication procedures using IP Multimedia (IM) Core Network (CN) subsystem
3GPP TS 24.6293rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals; Explicit Communication Transfer (ECT) using IP Multimedia (IM) Core Network (CN) subsystem;
Protocol specification
3GPP TS 24.6423rd Generation Partnership Project;
Technical Specification Group Core Network and Terminals;
Completion of Communications to Busy Subscriber (CCBS) and Completion of Communications by No Reply (CCNR)
using IP Multimedia (IM) Core Network (CN) subsystem; Protocol specification
3GPP TS 24.654Digital cellular telecommunications system (Phase 2+); Universal Mobile Telecommunications System (UMTS);
LTE; Closed User Group (CUG) using IP Multimedia (IM) Core Network (CN) subsystem, Protocol Specification)
3GPP TS 26.071Mandatory speech CODEC speech processing functions; AMR speech Codec; General description
3GPP TS 26.090Mandatory Speech Codec speech processing functions; Adaptive Multi-Rate (AMR) speech codec; Transcoding functions
3GPP TS 26.093Mandatory speech codec speech processing functions Adaptive Multi-Rate (AMR) speech codec; Source controlled rate operation
3GPP TS 26.103Speech codec list for GSM and UMTS
3GPP TS 26.1143rd Generation Partnership Project;Technical Specification Group Services and System Aspects; IP Multimedia Subsystem (IMS); Multimedia Telephony; Media handling and interaction
3GPP TS 26.235Packet Switched Conversational Multimedia Application; Default Codecs
3GPP TS 26.236Packet Switched Conversational Multimedia Applications; Transport Protocols
3GPP TS 26.445Universal Mobile Telecommunications System (UMTS); LTE; Codec for Enhanced Voice Services (EVS); Detailed algorithmic description
3GPP TS 29.162Interworking between the IM CN subsystem and IP networks
3GPP TS 29.1653rd Generation Partnership Project; Technical Specification Group Core Network and Terminals; Inter-IMS Network to Network Interface (NNI)
3GPP TS 29.235Interworking between SIP-I based circuit-switched core network and other networks
3GPP TS 32.225Telecommunication management; Charging management; Charging data description for the IP Multimedia Subsystem (IMS)
3GPP TS 32.240Telecommunication management; Charging management; Charging architecture and principles
3GPP TS 32.260Telecommunication management; Charging management; IP Multimedia Subsystem (IMS) charging
3GPP TS 32.298Telecommunication management; Charging management; Charging Data Record (CDR) parameter description
3GPP TS 33.2033G security; Access security for IP-based services
3GPP TS 33.210IP Network Level Security
3GPP TS 32.299Telecommunication management; Charging management; Diameter charging applications

ETSI

Supported ETSI Standards

StandardDescription
ETSI ES 282 001NGN Functional Architecture Release 1
ETSI ES 282 002PSTN/ISDN Emulation Sub-system (PES); Functional architecture
ETSI ES 282 007NGN IMS Architecture
ETSI EN 383 001Interworking for SIP/SIP-T (BICC, ISUP)
ETSI ES 283 003NGN SIP and SDP
ETSI TS 181 005Services and Capabilities Requirements
ETSI TS 181 006Services and Capabilities Requirements for TISPAN NGN Rel. 1
ETSI TS 182 006IMS stage 2 Endorsement
ETSI TS 182 012IMS-based PSTN/ISDN Emulation Subsystem; Functional Architecture
ETSI TS 183 002Common Basis Communication Procedures, Protocol Specification
ETSI TS 183 043IMS-based PSTN/ISDN Emulation Stage 3 Specification
ETSI TS 187 001NGN Security requirements
ETSI TS 187 003Security Architecture
ESTI EN 300 356-1Integrated Services Digital Network (ISDN); Signalling System No.7; ISDN User Part (ISUP) version 3 for the international interface; Part 1: ISUP Basic services[ITU T Recommendations Q.761 to Q.764 (1997), modified
ETSI ES 201 235-2 V1.2.1 (2002-03)Access and Terminals (AT); Specification of Dual-Tone Multi-Frequency (DTMF) Transmitters and Receivers; Part 2: Transmitters
ETSI ETS 300 374-1Intelligent Network (IN); Intelligent Network Capability Set 1 (CS1); Core Intelligent Network Application Protocol (INAP); Part 1: Protocol specification
ETSI PRI (Q.931 – ETSI EN 300-403)Integrated Services Digital Network (ISDN); Digital Subscriber Signalling System No. One (DSS1) Protocol; Signalling Network Layer for Circuit- Mode Basic Call Control; Protocol Specification
ETSI TR 103 393 V1.1.1 (2016-03)Emergency Communications (EMTEL); Advanced Mobile Location for emergency calls

GSMA

Supported GSMA Standards

StandardDescription
GSMA IR.34Guidelines for IPX Provider networks (Previously Inter-Service Provider IP Backbone Guidelines)
GSMA IR.65IMS Roaming and Interworking Guidelines
GSMA IR.74Video Share Interoperability Specification
GSMA IR.77Inter-Operator IP Backbone Security Requirements For Service Providers and Inter-operator IP backbone Providers
GSMA IR.79Image Share Interoperability Specification
GSMA IR.83SIP-I Interworking Description
GSMA IR.84Video Share Phase 2 Interoperability Specification
GSMA IR.90RCS Interworking Guidelines
GSMA IR.92IMS Profile for Voice and SMS
GSMA IR.94IMS Profile for Conversational Video Service
GSMA IR.95SIP – SDP Inter-IMS NNI Profile
GSMA NGRAINext Generation Roaming and Interoperability (NGRAI) Project Scope White Paper
GSMA RCC.07Rich Communication Suite 5.1 Advanced Communications Services and Client Specification
GSMA RCC.71RCS Universal Profile Service Definition Document
GSMA SE.35IMS Services and Applications

IETF

Supported IETF Standards

StandardDescription
RFC 768 User Datagram Protocol
RFC 791 (updated by RFC 1349)Internet Protocol (Type of Service in the Internet Protocol Suite)
RFC 792 (updated by RFC 950, RFC 4884)Internet Control Message Protocol
RFC 793 (updated by RFC 3168)Transmission Control Protocol
RFC 826Ethernet Address Resolution Protocol
RFC 1305 Network Time Protocol (Version 3) Specification, Implementation
RFC 1591Domain Name System Structure and Delegation
RFC 1878Variable Length Subnet Table For IPv4
RFC 1889RTP: A Transport Protocol for Real-Time Applications
RFC 2198RTP Payload for Redundant Audio Data
RFC 2327SDP
RFC 2409The Internet Key Exchange (IKE)
RFC 2410The NULL Encryption Algorithm and Its Use With Ipsec
RFC 2460Internet Protocol Version 6 (IPv6) Specification
RFC 2461 (updated by 4311)Neighbor Discovery for IP Version 6 (IPv6)
RFC 2464 Transmission of IPv6 Packets over Ethernet Networks
RFC 2474Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers
RFC 2475An Architecture for Differentiated Services
RFC 2617HTTP Authentication: Basic and Digest Access Authentication
RFC 2675IPv6 Jumbograms
RFC 2711IPv6 Router Alert Option
RFC 2766 (updated by 3152)Network Address Translation - Protocol Translation (NAT-PT)
RFC 2865 (updated by 2868, RFC 3575) Remote Authentication Dial In User Service (RADIUS)
RFC 2866 (updated by RFC 2867) RADIUS Accounting
RFC 2833RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
RFC 2915The Naming Authority Pointer (NAPTR) DNS Resource Record
RFC 2916E.164 number and DNS
RFC 2976The SIP INFO Method
RFC 3087 Control of Service Context using SIP Request-URI
RFC 3164The BSD Syslog Protocol
RFC 3204MIME media type ISUP
RFC 3260New Terminology and Clarifications for Diffserv
RFC 3261SIP: Session Initiation Protocol (SIP)
RFC 3262Reliability of Provisional Responses in Session Initiation Protocol (SIP)
RFC 3263Session Initiation Protocol (SIP): Locating SIP Servers
RFC 3264An Offer/Answer Model with the Session Description Protocol (SDP)
RFC 3265Session Initiation Protocol (SIP) - Specific Event Notification
RFC 3267 (2002)Real-time Transport Protocol RTP Payload Format and File Storage Format for Audio Codecs
RFC 3309Stream Control Transmission Protocol (SCTP) Checksum
RFC 3311The Session Initiation Protocol (SIP) UPDATE Method
RFC 3312Integration of Resource Management and Session Initiation Protocol (SIP)
RFC 3313Private Session Initiation Protocol (SIP) Extensions for Media Authorization
RFC 3323A Privacy Mechanism for the Session Initiation Protocol (SIP)
RFC 3324Short Term Requirements for Network Asserted Identity
RFC 3325Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks
RFC 3326The Reason Header Field for the Session Initiation Protocol (SIP)
RFC 3327Session Initiation Protocol (SIP) Extension Header Field for Registering Non- Adjacent Contacts
RFC 3329Security Mechanism Agreement for the Session Initiation Protocol (SIP)
RFC 3372Session Initiation Protocol for Telephones (SIP-T): Context and Architectures
RFC 3389Real-time Transport Protocol (RTP) Payload for Comfort Noise (CN)
RFC 3398ISUP to SIP Mapping
RFC 3411An Architecture for Describing SNMP Management Frameworks
RFC 3412Message Processing and Dispatching for SNMP
RFC 3413Simple Network Management Protocol (SNMP) Applications
RFC 3414User-based Security Model (USM) for version 3 of the Simple Network Management
RFC 3415View-based Access Control Model (VACM) for the SNMP
RFC 3418Management Information Base (MIB) for the SNMP
RFC 3420Internet Media Type message/sipfrag
RFC 3428Session Initiation Protocol (SIP) Extension for Instant Messaging
RFC 3455Private Header (P-Header) Extensions to the Session Initiation Protocol (SIP) for the 3rd-Generation Partnership Project (3GPP)
RFC 3486Compressing the Session Initiation Protocol (SIP)
RFC 3513Internet Protocol Version 6 (IPv6) Addressing Architecture
RFC 3515The Session Initiation Protocol (SIP) Refer Method
RFC 3550RTP: A Transport Protocol for Real-Time Applications
RFC 3551RTP Profile for Audio and Video Conferences with Minimal Control
RFC 3556Session Description Protocol (SDP) Bandwidth Modifiers for RTP Control Protocol (RTCP) Bandwidth
RFC 3581An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing
RFC 3584SIP Extension for Symmetric Response Routing
RFC 3588Diameter Base Protocol
RFC 3596DNS Extensions to Support IP Version 6
RFC 3605Real Time Control Protocol (RTCP) attribute in SDP
RFC 3608Session Initiation Protocol (SIP) Extension Header Field for Service Route Discovery During Registration
RFC 3611RTP Control Protocol Extended Reports (RTCP XR)
RFC 3680A Session Initiation Protocol (SIP) Event Package for Registrations
RFC 3711Secure Real-time Transport Protocol
RFC 3761The E.164 to Uniform Resource Identifiers (URI) Dynamic Delegation Discovery System (DDDS) Application (ENUM)
RFC 3826The Advanced Encryption Standard (AES) Cipher Algorithm in the SNMP User-
RFC 3840Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)
RFC 3841Caller Preferences for the Session Initiation Protocol (SIP)
RFC 3842A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP)
RFC 3862Common Presence and Instant Messaging (CPIM): Message Format
RFC 3891The Session Initiation Protocol (SIP) "Replaces" Header
RFC 3892The Session Initiation Protocol (SIP) Referred-By Mechanism
RFC 3903Session Initiation Protocol (SIP) Extension for Event State Publication
RFC 3947Negotiation of NAT-Traversal in the IKE
RFC 3951Internet Low Bit Rate Codec (iLBC)
RFC 3952RTP Payload Format for iLBC (internet Low Bit Rate Codec) Speech 
RFC 3959The Early Session Disposition Type for the Session Initiation Protocol (SIP)
RFC 3960Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP)
RFC 3966The tel URI for Telephone Numbers
RFC 3994 Indication of Message Composition for Instant Messaging 
RFC 4006Diameter Credit-Control Application
RFC 4022Management Information Base for the Transmission Control Protocol (TCP)
RFC 4028Session Timers in the Session Initiation Protocol (SIP)
RFC 4032Update to the Session Initiation Protocol (SIP) Preconditions Framework
RFC 4092Usage of the Session Description Protocol (SDP) Alternative Network Address Types (ANAT) Semantics in the Session Initiation Protocol (SIP)
RFC 4103RTP Payload for Text Conversation
RFC 4113Management Information Base for the User Datagram Protocol (UDP)
RFC 4109Algorithms for Internet Key Exchange version 1 (IKEv1)
RFC 4117Transcoding Services Invocation in the Session Initiation Protocol (SIP) Using Thurd Party Call Control (3pcc)
RFC 4119A Presence-based GEOPRIV Location Object Format
RFC 4123Session Initiation Protocol (SIP)-H.323 Interworking Requirements
RFC 4145TCP-Based Media Transport in the Session Description Protocol (SDP)
RFC 4168The Stream Control Transmission Protocol (SCTP) as a Transport for the Session Initiation Protocol (SIP)
RFC 4213Basic Transition Mechanisms for IPv6 Hosts and Routers
RFC 4291Internet Protocol Version 6 (IPv6) Addressing Architecture”; RFC3513 (Obsoletes RFC2373, Obsoleted by RFC4291)
RFC 4292IP Forwarding Table MIB
RFC 4293Management Information Base for the Internet Protocol (IP)
RFC 4294IPv6 Node Requirements
RFC 4244An Extension to the Session Initiation Protocol (SIP) for Request History Information
RFC 4293Management Information Base for the Internet Protocol (IP)
RFC 4301 Security Architecture for the Internet Protocol
RFC 4302IP Authentication Header
RFC 4303IP Encapsulating Security Payload (ESP)
RFC 4306Internet Key Exchange (IKEv2) Protocol
RFC 4307Cryptographic Algorithms for Use in the Internet Key Exchange Version 2 (IKEv2)
RFC 4308Cryptographic Suites for Ipsec
RFC 4412Communications Resource Priority for the Session Initiation Protocol (SIP)
RFC 4443Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification
RFC 4458Session Initiation Protocol (SIP) URIs for Applications such as Voicemail and Interactive Voice Response (IVR)
RFC 4488Suppression of Session Initiation Protocol (SIP) REFER Method Implicit Subscription
RFC 4538Request Authorization through Dialog Identification in the Session Initiation Protocol (SIP)
RFC 4566Session Description Protocol (SDP)
RFC 4567Key Management Extensions for SDP and RTSP
RFC 4568SDP Security Descriptions for Media Streams
RFC 4572Connection-Oriented Media Transport over the Transport Layer Security (TLS)
RFC 4573MIME Type Registration for RTP Payload Format for H.224
RFC 4575A Session Initiation Protocol (SIP) Event Package for Conference State
RFC 4583Session Description Protocol (SDP) Format for Binary Floor Control Protocol
RFC 4585Extended RTP Profile for Real-time Transport Control Protocol (RTCP)-Based Feedback (RTP/AVPF)
RFC 4629RTP Payload Format for ITU-T Rec. H.264 Video 
RFC 4662A Session Initiation Protocol (SIP) Event Notification Extension for Resource Lists
RFC 4694Number Portability Parameters for the "tel" URI
RFC 4730A Session Initiation Protocol (SIP) Event Package for Key Press Stimulus (KPML)
RFC 4733RTP Payload for DTMF Digits; Telephony Tones; and Telephony Signals
RFC 4753ECP Groups for IKE and IKEv2
RFC 4835Cryptographic Algorithm Implementation Requirements for Encapsulating Security Payload (ESP) and Authentication Header (AH)
RFC 4861Neighbor Discovery for IP Version 6 (IPv6)
RFC 4867RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs
RFC 4916Connected Identity in the Session Initiation Protocol (SIP)
RFC 4961Symmetric RTP / RTP Control Protocol (RTCP)
RFC 4964The P-Answer-State Header Extension to the Session Initiation Protocol for the Open Mobile Alliance Push to Talk over Cellular
RFC 4967Dial String Parameter for the Session Initiation Protocol Uniform Resource Identifier
RFC 4975Message Session Relay Protocol (MSRP)
RFC 4976Relay Extensions for the Message Session Relay Protocol (MSRP)
RFC 5002The Session Initiation Protocol (SIP)P-Profile-Key Private Header (P-Header)
RFC 5009Private Header (P-Header) Extension to the Session Initiation Protocol (SIP) for Authorization of Early Media
RFC 5031A Uniform Resource Name (URN) for Emergency and Other Well-Known Services
RFC 5049Applying Signaling Compression (SigComp) to the Session Initiation Protocol (SIP)
RFC 5067Infrastructure ENUM Requirements
RFC 5079ACR Response Code
RFC 5095Network Time Protocol Version 4 (for IPv6)
RFC 5104Codec Control Messages in the RTP Audio-Visual Profile with Feedback (AVPF)
RFC 5139Revised Civic Location Format for Presence Information Data Format Location Object (PIDF-LO)
RFC 5168XML Schema for Media Control
RFC 5227IPv4 Address Conflict Detection
RFC 5245Interactive Connectivity Establishment (ICE): A Protocol for Network Address Translator (NAT) Traversal for Offer/Answer Protocols
RFC 5282 Using Authenticated Encryption Algorithms with the Encrypted Payload of the Internet Key Exchange version 2 (IKEv2) Protocol
RFC 5285A General Mechanism for RTP Header Extensions
RFC 5318The Session Initiation Protocol (SIP) P-Refused-URI-List Private-Header (P- Header)
RFC 5343Simple Network Management Protocol (SNMP) Context EngineID Discovery
RFC 5359Session Initiation Protocol Service Examples
RFC 5360A Framework for Consent-Based Communications in the Session Initiation Protocol (SIP)
RFC 5365Multiple-Recipient MESSAGE Requests in the Session Initiation Protocol (SIP)
RFC 5366Conference Establishment Using Request-Contained Lists in the Session Initiation Protocol (SIP)
RFC 5367Subscriptions to Request-Contained Resource Lists in the Session Initiation Protocol (SIP)
RFC 5368Referring to Multiple Resources in the Session Initiation Protocol (SIP)
RFC 5373Requesting Answering Modes for the Session Initiation Protocol (SIP)
RFC 5393Addressing an Amplification Vulnerability in Session Initiation Protocol (SIP) Forking Proxies
RFC 5438
RFC 5438 Errata
Instant Message Disposition Notification (IMDN)
RFC 5491GEOPRIV Presence Information Data Format Location Object (PIDF-LO)Usage Clarification, Considerations, and Recommendations
RFC 5502The SIP P-Served-User Private-Header (P-Header) for the 3GPP IP Multimedia (IM) Core Network (CN) Subsystem
RFC 5503Private Session Initiation Protocol (SIP) Proxy-to-Proxy Extensions for Supporting  
RFC 5547SDP Offer/Answer Mechanism To Enable File Transfer
RFC 5590Transport Subsystem for the Simple Network Management Protocol (SNMP)
RFC 5621Message Body Handling in the Session Initiation Protocol (SIP)
RFC 5626Managing Client-Initiated Connections in the Session Initiation Protocol (SIP)
RFC 5627Obtaining and Using Globally Routable User Agent URIs (GRUUs) in the Session Initiation Protocol (SIP)
RFC 5658Addressing Record-Route Issues in the Session Initiation Protocol (SIP)
RFC 5688A Session Initiation Protocol (SIP) Media Feature Tag for MIME Application Subtypes
RFC 5705Keying Material Exporters for Transport Layer Security (TLS)
RFC 5763Framework for Establishing a Secure Real-time Transport Protocol (SRTP) Security Context Using Datagram Transport Layer Security (DTLS)
RFC 5764Datagram Transport Layer Security (DTLS) Extension to Establish Keys for the Secure Real-time Transport Protocol (SRTP) 
RFC 5768Indicating Support for Interactive Connectivity Establishment (ICE) in the Session Initiation Protocol (SIP)
RFC 5798Virtual Router Redundancy Protocol (VRRP) Version 3 for IPv4 and IPv6
RFC 5806Diversion Indication in SIP
RFC 5839An Extension to Session Initiation Protocol (SIP) Events for Conditional Event Notification
RFC 5881Bidirectional Forwarding Detection (BFD) for IPv4 and IPv6 (Single Hop)
RFC 5883Bidirectional Forwarding Detection (BFD) for Multihop Paths
RFC 5905Network Time Protocol Version 4 (for IPv6)
RFC 5939Session Description Protocol (SDP) Capability Negotiation
RFC 5954Essential Correction for IPv6 ABNF and URI Comparison in RFC 3261
RFC 5966DNS Transport over TCP - Implementation Requirements
RFC 5976Y.1541-QOSM: Model for Networks Using Y.1541 Quality-of-Service Classes
RFC 6044Mapping and Interworking of Diversion Information between Diversion and History-Info Headers in the Session Initiation Protocol (SIP)
RFC 6050A Session Initiation Protocol (SIP) Extension for the Identification of Services
RFC 6086Session Initiation Protocol (SIP) INFO Method and Package Framework
RFC 6135Alternative Connection Model for MSRP UA
RFC 6140Registration for Multiple Phone Numbers in the Session Initiation Protocol (SIP)
RFC 6184RTP Payload Format for H.264 Video
RFC 6223Indication of Support for Keep-Alive
RFC 6228Session Initiation Protocol (SIP) Response Code for Indication of Terminated Dialog
RFC 6337Session Initiation Protocol (SIP) Usage of the Offer/Answer Model
RFC 6347Datagram Transport Layer Security Version 1.2
RFC 6377 Non-reliable provisional response to the INVITE
RFC 6432Carrying Q.850 Codes in Reason Header Fields in SIP (Session Initiation Protocol) Responses
RFC 6442Location Conveyance for the Session Initiation Protocol
RFC 6665SIP-Specific Event Notification
RFC 6714Connection Establishment for Media Anchoring
RFC 6716Definition of the Opus Audio Codec
RFC 6724Default Address Selection for Internet Protocol Version 6 (IPv6)
RFC 6733Diameter Base Protocol
RFC 6794A Framework for Session Initiation Protocol (SIP) Session Policies
RFC 6809Mechanism to Indicate Support of Features and Capabilities in the Session Initiation Protocol (SIP)
RFC 6881Best Current Practice for Communications Services in Support of Emergency Calling
RFC 6891Extension Mechanisms for DNS (EDNS (0)
RFC 6910Completion of Calls for the Session Initiation Protocol (SIP)
RFC 6961The Transport Layer Security (TLS) Multiple Certificate Status Request Extension
RFC 7090Public Safety Answering Point (PSAP) Callback
RFC 7135Registering a SIP Resource Priority Header Field Namespace for Local Emergency Communications
RFC 7200A Session Initiation Protocol (SIP) Load-Control Event Package
RFC 7245An Architecture for Media Recording Using the Session Initiation Protocol
RFC 7315Private Header (P-Header) Extensions to the Session Initiation Protocol (SIP) for the 3GPP
RFC 7316The Session Initiation Protocol (SIP) P-Private-Network-Indication Private Header (P-Header)
RFC 7329A Session Identifier for the Session Initiation Protocol (SIP)
RFC 7332Loop Detection Mechanisms for Session Initiation Protocol (SIP) Back-to-Back User Agents (B2BUAs)
RFC 7339Session Initiation Protocol (SIP) Overload Control
RFC 7433A Mechanism for Transporting User-to-User Call Control Information in SIP
RFC 7434Interworking ISDN Call Control User Information with SIP
RFC 7459Representation of Uncertainty and Confidence in the Presence Information Data Format Location Object (PIDF-LO)
RFC 7462URNs for the Alert-Info Header Field of the Session Initiation Protocol (SIP)
RFC 75493GPP SIP URI Inter-Operator Traffic Leg Parameter
RFC 7647Clarifications for the Use of REFER with RFC 6665
RFC 7798RTP Payload Format for High Efficiency Video Coding (HEVC)
RFC 7865Session Initiation Protocol (SIP) Recording Metadata
RFC 7866Session Recording Protocol
RFC 7913P-Access-Network-Info ABNF Update
RFC 7989End-to-End Session Identification in IP-Based Multimedia Communication Networks
RFC 8068Session Initiation Protocol (SIP) Recording Call Flows
RFC 8119SIP "cause" URI Parameter for Service Number Translation
RFC 8197A SIP Response Code for Unwanted Calls
RFC 8224Authenticated Identity Management in the Session Initiation Protocol (SIP)
IETFdraft-ietf-insipid- logme-marking-09Marking SIP Messages to be Logged
IETF draft-jesske- sipcore-reason-q850- loc-00ISUP Cause Location Parameter for the SIP Reason Header Field
IETF draft-mohali-sipcore-originating- cdiv-parameter-00A P-Served-User Header Field Parameter for Originating CDIV session case in Session Initiation Protocol (SIP)

ITU

Supported ITU Standards

StandardDescription
ITU-T G.107The E-model: a computational model for use in transmission planning
ITU-T G.108Application of the E-model: A planning guide
ITU-T G.114International telephone connections and circuits – General Recommendations on the transmission quality for an entire international telephone connection
ITU-T G.711Pulse code modulation (PCM) of voice frequencies
ITU-T G.7227 kHz audio-coding within 64 kbit/s
ITU-T G.729G.729 : Coding of speech at 8 kbit/s using conjugate-structure algebraic- code-excited linear prediction (CS-ACELP)
ITU-T Q.1912.5Interworking between Session Initiation Protocol (SIP) and Bearer Independent Call Control protocol or ISDN User Part
ITU-T Q771 – Q774 ETSI 300 134
ETSI 300 287
Transaction Capabilities Application Part (TCAP)

NENA

Supported NENA Standards

StandardDescription

08-001 v2 

Interim VoIP Architecture for Enhanced 9-1-1 Services (i2)

SIP Forum

Supported SIP Forum Standards

StandardDescription

SIPConnect 1.0

Direct IP peering between SIP-enabled IP PBXs and VoIP service provider networks

SIPConnect 1.1

SIP-PBX/ Service Provider Interoperability

SIPConnect 2.0 Updated guidelines for SIP-PBX / Service Provider Interoperability 

PacketCable

Supported PacketCable Standards

StandardDescription

PKT-SP-ESP-103-040113

PacketCable Electronic Surveillance Specification

PKT-SP-ES-DCI-C01-140314PacketCable 2.0 – PacketCable Electronic Surveillance Delivery Function to Collection Function Interface Specification

Telecommunication Technology Committee

StandardDescription

JJ-90.30

Common interconnection interface between IMS operator's networks. For more information, refer to https://www.ttc.or.jp/application/files/5615/5443/0175/JJ-90.30Ev5.pdf.

Other Specifications

Other Specifications

StandardDescription
ACIF C518:2006Call Charging and Billing Accuracy
ACIF C519:2004End-to-End Network Performance for the Standard Telephone Service
ACIF C542:2003Industry Code: Billing
ACIF G.549:2000Interconnection Implementation Plan
ACIF G.557:2014Location Information for Emergency Calls
CA G632:2007Communication Alliance Guideline - Quality of Service parameters for networks using the Internet Protocol
CA G633:2007Communication Alliance Guideline - Testing Arrangements for Quality of Service Parameters for Internet Protocol Services
CA G634:2007Communication Alliance Guideline - Quality of Service parameters for Voice over Internet Protocol (VoIP) services
CA G635:2007Communication Alliance Guideline - Testing Arrangements for Quality of Service Parameters for Voice over Internet Protocol (VoIP) Services
ATIS-1000074Signature-Based Handling Of Asserted Information Using Tokens (Shaken)
ATIS-0300116Interoperability Standards between Next Generation Networks (NGN) for Signature-Based Handling of Asserted information Using Tokens (SHAKEN)
ATIS-1000080Signature-based Handling of Asserted information using toKENs (SHAKEN): Governance Model and Certificate Management
ATIS-0300251Codes for Identification of Service Providers for Information Exchange.
ATIS-1000054ATIS Technical Report on Next Generation Network Certificate Management.