Relevant RFCs

This section gives some information on all RFCs that are either containing information directly relevant to VoIP or are referenenced in those. For more information on what an RFC is, please visit the IETF website. The full text of these RFCs is available there as well. We will not mirror it here.

List of Relevant RFCs

The following is the list of all those RFCs ordered by relevance, protocol, and number.

The list contains all relevant RFCs up to RFC 4816 consecutively and 4855 and 4856 as well.

Documents mentioned in the Hitchhiker's Draft are given in bold (this is as per -02).

Session Initiation Protocol

Primary Resources

• RFC 2543. SIP: Session Initiation Protocol. Obsolete.

• RFC 3261. SIP: Session Initiation Protocol.

• RFC 3263. SIP: Locating SIP Servers.

• RFC 4320. Actions Addressing Identified Issues with the SIP Non-INVITE Transaction.

Protocol Extensions

• RFC 2976. The SIP INFO Method.

• RFC 3262. Reliability of Provisional Responses in SIP.

• RFC 3265. SIP-Specific Event Notification.

• RFC 3311. The SIP UPDATE Method.

• RFC 3312. Integration of Resource Management and SIP.

• RFC 3323. A Privacy Mechanism for SIP.

• RFC 3326. The Reason Header Field for SIP.

• RFC 3327. SIP Extension Header Field for Registering Non-Adjacent Contacts.

• RFC 3329. Security Mechanism Agreement for SIP.

• RFC 3398. ISUP to SIP Mapping.

• RFC 3428. SIP Extension for Instant Messaging.

• RFC 3486. Compressing SIP.

• RFC 3515. The SIP Refer Method.

• RFC 3581. An Extension to SIP for Symmetric Response Routing.

• RFC 3608. SIP Extension Header Field for Service Route Discovery During Registraton.

• RFC 3680. A SIP Event Package or Registrations.

• RFC 3840. Indicating User Agent Capabilites in SIP.

• RFC 3841. Caller Preferences for SIP.

• RFC 3842. A Message Summary and Message Waiting Indication Event Package for SIP.

• RFC 3853. S/MIME AES Requirement for SIP.

• RFC 3856. A Presence Event Package for SIP.

• RFC 3857. A Watcher Information Event Template-Package for SIP.

• RFC 3891. The SIP "Replaces" Header.

• RFC 3892. The SIP Referred-By Mechanism.

• RFC 3893. SIP Authenticated Identity Body (AIB) Format.

• RFC 3903. SIP Extension for Event State Publication.

• RFC 3911. The SIP "Join" Header.

• RFC 3959. The Early Session Disposition Type for SIP.

• RFC 4028. Session Timers in SIP.

• RFC 4032. Update to the SIP Preconditions Framework.

• RFC 4092. Usage fo SDP ANAT Semantics in SIP.

• RFC 4117. Transcoding Services Invocation in SIP Using 3cpp.

• RFC 4168. SCTP as a Transport for SIP.

• RFC 4235. An INVITE-Initiated Dialog Event Package for SIP.

• RFC 4244. An Extension to SIP for Request History Information.

• RFC 4354. A SIP Event Package and Data Format for Various Settngs in Support for the Push-to-Talk over Cellular (PoC) Service.

• RFC 4411. Extending the SIP Reason Header for Preemption Events.

• RFC 4412. Communications Resource Priority for SIP.

• RFC 4457. The SIP P-User-Database P-Header.

• RFC 4458. SIP URIs for Applications such as Voicemail and IVR.

• RFC 4474. Enhancements for Authenticated Identity Management in SIP.

• RFC 4483. A Mechanism for Content Indirection in SIP.

• RFC 4488. Suppression of SIP REFER Method Implicit Subscription.

• RFC 4508. Conveying Feature Tags with the SIP REFER Method.

• RFC 4538. Request Authorizaion trough Dialog Identification in SIP.

• RFC 4575. A SIP Event Package for Conference State.

• RFC 4662. A SIP Event Notification Extension for Resource Lists.

• RFC 4730. A SIP Event Package for Key Press Stimilus (KPML).

Private Extensions

• RFC 3313. Private SIP Extensions for Media Authorization.

• RFC 3325. Private Extensions to SIP for Asserte Identity within Trusted Networks.

• RFC 3455. Private Header Extensions to SIP for 3GPP.

• RFC 3603. Private SIP Proxy-to-Proxy Extensions for Supporting the PacketCable Distributed Call Signaling Architecture.

Requirement Documents

• RFC 3351. User Requirements for SIP in Support of Deaf, Hard of Hearing and Speech-impaired Individuals.

• RFC 3487. Requirements for Resource Priority Mechanisms for SIP.

• RFC 3689. General Requirements for Emergency Telecommunication Service (ETS).

• RFC 3690. IP Telephony Requirements for Emergency Telecommunication Service (ETS).

• RFC 4123. SIP-H.323 Interworking Requirements.

• RFC 4189. Requirements for End-to-Middle Security for SIP.

• RFC 4453. Requirements for Consent-Based Communication in SIP.

• RFC 4484. Trait-Based Authorization Requirements for SIP.

• RFC 4504. SIP Telephony Device Requirements and Configuration.

Best Practices and Other Informational RFCs

• RFC 3050 CGI for SIP.

• RFC 3087. Control of Service Context using SIP Request-URI.

• RFC 3372. SIP-T: Context and Architectures.

• RFC 3427. Change Process for SIP.

• RFC 3665. SIP Basic Call Flow Examples.

• RFC 3666. SIP PSTN Call Flows.

• RFC 3824. Using E.164 numbers with SIP.

• RFC 3960. Early Media and Ringing Tone Generation in SIP.

• RFC 3976. Interworking SIP and Intelligent Network (IN) Applications.

• RFC 4083. Input 3GPP Release 5 Requirements on SIP.

• RFC 4190. Framework for Supporting Emergency Telecommunications Service (ETS) in IP Telephony.

• RFC 4240. Basic Network Media Services with SIP.

• RFC 4321. Problems Identified Associated with the SIP Non-INVITE Transaction.

• RFC 4353. A Framework for Conferencing with SIP.

• RFC 4475. SIP Torture Test Messages.

• RFC 4485. Guidelines for Authors of Extensions to SIP.

• RFC 4497. Interworking between SIP and QSIG.

• RFC 4579. SIP Call Control - Conferencing for User Agents.

• RFC 4596. Guidelines for Usage of SIP Caller Preferences Extensions.

• RFC 4597. Conferencing Scenarios.

Experimental

• RFC 3832. Remote Service Discovery in SIP via DNS SRV.

Session Description Protocol

Primary Resources

• RFC 2327. SDP: Session Description Protocol.

• RFC 3264. An Offer/Answer Model with SDP.

• RFC 4566. SDP: Session Description Protocol.

Protocol Extensions

• RFC 3108. Conventions for the use of SDP for ATM Bearer Connections.

• RFC 3266. Support for IPv6 in SDP.

• RFC 3388. Grouping of Media Lines in SDP.

• RFC 3407. SDP Simple Capability Declaration.

• RFC 3524. Mapping of Media Streams to Resource Reservation Flows.

• RFC 3556. SDP Bandwidth Modifiers for RTCP Bandwidth.

• RFC 3605. RTCP attribute in SDP.

• RFC 3890. A Transport Independent Bandwidth Modifier for SDP.

• RFC 4091. The Alternative Network Address Types (ANAT) Semantics for SDP.

• RFC 4145. TCP-Based Media Transport in SDP.

• RFC 4567. Key Management Extensions for SDP and RTSP.

• RFC 4568. SDP Security Descriptions for Media Streams.

• RFC 4570. SDP Source Filters.

• RFC 4572. Connection-Oriented Media Transport over TLS in SDP.

• RFC 4574. The SDP Label Attribute.

• RFC 4583. SDP Format for BFCP Streams.

• RFC 4796. The SDP Content Attribute.

Best Practices and Other Informational RFCs

• RFC 4317. SDP Offer/Answer Examples.

Real-time Transport Protocol

Primary Resources

• RFC 1889. RTP. A Transport Protocol for Real-Time Appliations.

• RFC 1890. RTP Profile for Audio and Video Conferences with Minimal Control.

• RFC 3550. RTP: A Transport Protocol for Real-Time Applications.

• RFC 3551. RTP Profile for Audio and Video Conferences with Minimal Control.

• RFC 3711. The Secure Real-time Transport Protocol (SRTP).

Protocol Extensions

• RFC 2508. Compressing IP/UDP/RTP Headers for Low-Speed Serial Links.

• RFC 2762. Sampling of the Group Membership in RTP.

• RFC 2959. RTP MIB.

• RFC 3545. Enhanced Compressed RTP (CRTP) for Links with High Delay.

• RFC 3611. RTP Control Protocol Extended Reports (RTCP XR).

• RFC 4384. The Use of Timed Efficient Stream Loss-Tolerant Authentication (TESLA) in SRTP.

• RFC 4571. Framing RTP and RTCP Packets over Connection-Oriented Transport.

• RFC 4585. Extended RTP Profile for RTCP-Based Feedback (RTP/AVPF).

• RFC 4734. Definition of Events for Modem, Fax, and Text Telephony Signals.

• RFC 4771. Integrity Transform Carrying Roll-Over Counter for SRTP.

• RFC 4788. Enhancements to RTP Payload Formats for EVRC Family Codecs.

Payload Formats

• RFC 2029. RTP Payload Format for Sun's CellB Video Encoding.

• RFC 2032. RTP Payload Format for H.261 Video Streams.

• RFC 2035. RTP Payload Format for JPEG-compressed Video.

• RFC 2038. RTP Payload Format for MPEG1/MPEG2 Video.

• RFC 2190. RTP Payload Format for H.263 Video Streams.

• RFC 2198. RTP Payload for Redundant Audio Data.

• RFC 2250. RTP Payload Format for MPEG1/MPEG2 Video.

• RFC 2343. RTP Payload Format for Bundled MPEG.

• RFC 2429. RTP Payload Format for the 1998 Version of ITU-T Rec. H.263 Video (H.263+).

• RFC 2431. RTP Payload Format for BT.656 Video Encoding.

• RFC 2435. RTP Payload Format for JPEG-compressed Video.

• RFC 2658. RTP Payload Format for PureVoice(tm) Audio.

• RFC 2733. An RTP Payload Format for Generic Forward Error Correction.

• RFC 2793 RTP Payload for Text Convrsation.

• RFC 2833. RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals.

• RFC 2862. RTP Payload Format for Real-Time Pointers.

• RFC 3016. RTP Payload Format for MPEG-4 Audio/Visual Streams.

• RFC 3047. RTP Payload Format for ITU-T Recommendation G.722.1.

• RFC 3119. A More Loss-Tolerant RTP Payload Format for MP3 Audio.

• RFC 3189. RTP Payload Format for DV (IEC 61834) Video.

• RFC 3190. RTP Payload Format for 12-bit DAT Audio and 20- and 24-bit Linear Sampled Audio.

• RFC 3267. RTP Payload Format and File Storage Format for the Adaptive Multi-Rate (AMR) and Adaptive Multi-Rate Wideband (AMR-WB) Audio Codecs.

• RFC 3389. RTP Payload for Comfort Noise (CN).

• RFC 3497. RTP Payload Format for SMPTE 292M Video.

• RFC 3557. RTP Payload Format for ETSI ES 201 108 Distributed Speech Recognition Encoding.

• RFC 3558. RTP Payload Format for Enhanced Variable Rate Codecs (EVRC) and Selectable Mode Vocoders (SMV).

• RFC 3640. RTP Payload Format for Transport of MPEG-4 Elementary Streams.

• RFC 3952. RTP Payload Format for inernet Low Bit Rate Codec (iLBC) Speech.

• RFC 3984. RTP Payload Format for H.264 Video.

• RFC 4040. RTP Payload Format for a 64 kbit/s Transparent Call.

• RFC 4060. RTP Payload Format for ETSI ES 202 050, ES 202 211, and ES 202 212 Distributed Speech Recognition Encoding.

• RFC 4103. RTP Payload for Text Conversation.

• RFC 4175. RTP Payload Format for Uncompressed Video.

• RFC 4184. RTP Payload Format for AC-3 Audio.

• RFC 4298. RTP Payload Format for BroadVoice Speech Codecs.

• RFC 4348. RTP Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Audio Codec.

• RFC 4351. RTP Payload Format for Text Conversation Interleaved in an Audio Stream.

• RFC 4352. RTP Payload Format for the Extended Adaptive Multi-Rate Wideband (AMR-WB+) Audio Codec.

• RFC 4396. RTP Payload Format for 3GPP Timed Text.

• RFC 4421. RTP Payload Format for Uncompressed Video: Additional Colour Sampling Modes.

• RFC 4424. RTP Payload Format for the Variable-Rate Multimode Wideband (VMR-WB) Extension Audio Codec.

• RFC 4425. RTP Payload Format for Video Codec 1 (VC-1).

• RFC 4587. RTP Payload Format for H.261 Video Streams.

• RFC 4588. RTP Retransmission Payload Format.

• RFC 4598. RTP Payload Format for Enhanced AC-3 (E-AC-3).

• RFC 4629. RTP Payload Format for ITU-T Rec. H.263 Video.

• RFC 4695. RTP Payload Format for MIDI.

• RFC 4733. RTP Payload for DTMF Digits, Telephony Tones, and Telephony Signals.

• RFC 4749. RTP Payload Format for the G.729.1 Audio Codec.

Best Practices and Other Informational RFCs

• RFC 2736. Guidelines for Writers of RTP Payload Format Specifications.

• RFC 3158. RTP Testing Strategies.

• RFC 3725. Best Current Practices for Third Party Call Control (3pcc).

• RFC 4170. Tunneling Multiplexed Compressed RTP (TCRTP).

• RFC 4586. Extended RTP Profile for RTCP-Based Feedback: Results of the Timing Rule Simulations.

• RFC 4628. RTP Payload Format for H.263 Moving RFC 2190 to Historic Status.

• RFC 4696. An Implementation Guide for RTP MIDI.

STUN and TURN

Primary Resources

• RFC 3489. STUN - Simple Traversal of UDP Through NATs.

IANA and Media Registrations

• RFC 3420. Internet Media Type message/sipfrag.

• RFC 3555. MIME Type Registration of RTP Payload Formats.

• RFC 3968. The IANA Header Field Paramter Registry for SIP.

• RFC 3969. The IANA URI Parameter Registry for SIP.

• RFC 4569. IANA Registration of the Message Media Feature Tag.

• RFC 4573. MIME Type Registration for RTP Payload Format for H.224.

• RFC 4589. Location Types Registry.

• RFC 4855. Media Type Registration of RTP Payload Formats.

• RFC 4856. Media Type Registration of Payload Formats in the RTP Profile for Audio and Video Conferences.

RFCs that need to be read before putting them somewhere above

• RFC 2848. The PINT Service Protocol: Extensions to SIP and SDP for IP Access to Telephone Call Services.

• RFC 3204. MIME Media Types for ISUP and QSIG Objects.

• RFC 3485. The SIP and SDP Static Dictionary for SigComp.

• RFC 3578. Mapping of ISUP Overlap Signaling to SIP.

• RFC 3910. The SPIRITS Protocols.

• RFC 4479. A Data Model for Presence.

• RFC 4480. RPID: Rich Presence Extensions to PIDF.

• RFC 4481. Timed Presence Extensions to PIDF.

• RFC 4482. CPIPID: Contact Information for PIDF.

RFCs Referenced By The Above RFCs

• RFC 761. DoD Standard Transmission Control Protocol.

• RFC 768. Use Datagram Protocol.

• RFC 1123. Requirements for Internet Hosts – Application and Support.

• RFC 1321. The MD5 Message-Digest Algorithm.

• RFC 1750. Randomness Recommendations for Security.

• RFC 1847. Security Multiparts for MIME: Multipart/Signed and Multipart/Encrypted.

• RFC 1889. RTP: A Transport Protocol for Real-Time Applications.

• RFC 2046. Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types.

• RFC 2069. An Extension to HTTP: Digest Access Authentication.

• RFC 2076. Common Internet Message Headers.

• RFC 2119. Key words for use in RFCs to Indicate Requirement Levels.

• RFC 2183. Communicating Presentation Information in Internet Messages: The Content-Disposition Header Field.

• RFC 2234. Augmented BNF for Syntax Specifications: ABNF.

• RFC 2246. The TLS Protocol Version 1.0.

• RFC 2277. IETF Policy on Character Sets and Languages.

• RFC 2279. UTF-8, a transformation format on ISO 10646.

• RFC 2326. Real Time Streaming Protocol (RTSP).

• RFC 2327. SDP: Session Description Protocol.

• RFC 2368. The mailto URL scheme.

• RFC 2396. Uniform Resource Identifiers (URI): Generic Syntax.

• RFC 2401. Security Architecture for the Internet Protocol.

• RFC 2426. vCard MIME Directory Profile.

• RFC 2616. Hypertext Transfer Protocol – HTTP/1.1.

• RFC 2617. HTTP authentication: Basic and Digest Access Authentification.

• RFC 2630. Cryptographic Message Syntax.

• RFC 2633. S/MIME Version 3 Message Specification.

• RFC 2806. URLs for Telephone Calls.

• RFC 2822. Internet Message Format.

• RFC 2849. The LDAP Data Interchange Format (LDIF) – Technical Specification.

• RFC 2914. Congestion Control Principles.

• RFC 2960. Stream Control Transmission Protocol.

• RFC 3015. Megaco Protocol Version 1.0.

• RFC 3204. MIME media types for ISUP and QSIG Objects.

• RFC 3268. Advanced Encryption Standard (AES) Ciphersuites for Transport Layer Security (TLS).

• RFC 3324. Short Term Requirements for Network Asserted Identity.

• RFC 3986. URI: Generic Syntax.