SIP and Open Standards

CounterPath is actively involved in many Working Groups within the IETF (Internet Engineering Task Force) including:

• SIP: Session Initiation Protocol
• SIMPLE: SIP for Instant Messaging and Presence Leveraging Extensions
• SIPPING: Session Initiation Proposal Investigation
• MMUSIC: Multiparty Multimedia Session Control
• XCON: Centralized Conferencing
• XMPP: Presence, IM and File Transfer

Standards Compliance

Request for Comments (RFC) documents encompass new research, innovations and methodologies applicable to Internet technologies. The Internet Engineering Task Force (IETF) adopts some of the proposals published in RFCs as Internet standards.

The following is a list of RFCs to which CounterPath is compliant.

SIP

• RFC 2617 HTTP Authentication: Basic and Digest Access Authentication (for SIP)
• RFC 2976 The SIP INFO Method
• RFC 3261 SIP: Session Initiation Protocol
• RFC 3263 Session Initiation Protocol (SIP): Locating SIP Servers
• RFC 3265 Session Initiation Protocol (SIP): Specific Event Notification
• RFC 3420 Internet Media Type message/sipfrag
• RFC 3515 The Session Initiation Protocol (SIP) Refer Method
• RFC 3581 An Extension to the Session Initiation Protocol (SIP) for Symmetric Response Routing
• RFC 3842 Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol
• RFC 3891 The Session Initiation Protocol (SIP) "Replaces" Header
• draft-ietf-sipping-cc-transfer Session Initiation: Protocol Call Control - Transfer
• draft-sparks-sipping-dialogusage-00
• draft-ietf-sip-referredby-05

Instant Messaging and Presence

• RFC 2778 A Model for Presence and Instant Messaging
• RFC 3428 Session Initiation Protocol (SIP) Extension for Instant Messaging
• RFC 3856 A Presence Event Package for the Session Initiation Protocol (SIP)
• RFC 3857 A Watcher Information Event Template-Package for the Session Initiation Protocol (SIP)
• RFC 3858 An Extensible Markup Language (XML) Based Format for Watcher Information
• RFC 3859 Common Profile for Presence (CPP)
• RFC 3863 Presence Information Data Format (PIDF)
• RFC 3903 Session Initiation Protocol (SIP) Extension for Event State Publication
• draft-ietf-simple-presence-data-model-01
• draft-ietf-simple-rpid-04
• draft-ieft-simple-cipid-03
• draft-ietf-simple-iscomposing-04
• draft-ietf-simple-presence-rules-01
• draft-ietf-simple-event-list-06

XMPP

• RFC 3920 Extensible Messaging and Presence Protocol (XMPP): Core
• RFC 3921 XMPP: Instant Messaging and Presence
• XEP-0004 Data Forms
• XEP-0016 Privacy Lists
• XEP-0022 Message Events
• XEP-0077 In-Band Registration
• XEP-0085 Chat State Notifications
• XEP-0092 Software Version
• XEP-0115 Entity Capabilities

Document Storage

• RFC 2518 HTTP Extensions for Distributed Authoring WEBDAV
• draft-ietf-simple-xcap-05
• draft-ietf-simple-xcap-list-usage-03
• draft-ietf-geopriv-common-policy-03
• draft-ietf-simple-xcap-package-02

Network

• RFC 1035 Domain names - implementation and specification
• RFC 2782 A DNS RR for specifying the location of services (DNS SRV)
• RFC 2327 SDP: Session Description Protocol
• RFC 2782 A DNS RR for specifying the location of services (DNS SRV)
• RFC 2915 The Naming Authority Pointer (NAPTR) DNS Resource Record
• RFC 3489 STUN - Simple Traversal of User Datagram Protocol (UDP) Through Network Address Translators

Media

• RFC 1889 RTP: A Transport for Real-Time Applications
• RFC 2190 RTP Payload Format for H.263 Video Streams
• RFC 2327 SDP: Session Description Protocol
• RFC 2429 RTP Payload Format for the 1998 Version of ITU-T Rec. H.263 Video (H.263+)
• RFC 2833 RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
• RFC 3264 An Offer/Answer Model with Session Description Protocol
• RFC 3550 RTP: A Transport Protocol for Real-Time Applications [replaces RFC 1889]
• RFC 3555 MIME Type Registration of RTP Payload Formats
• RFC 3605 Real Time Control Protocol (RTCP) attribute in Session Description Protocol (SDP)
• RFC 3558 RTP Payload Format for Enhanced Variable Rate Codecs (EVRC)
• draft-ietf-mmusic-ice-02 Interactive Connectivity Establishment (ICE): A Methodology for Network Address Translator (NAT) Traversal for Multimedia Session Establishment Protocols
• draft-ietf-avt-rtp-ilbc-04
• draft-ietf-avt-ilbc-codec-05

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