Session description protocol (SDP) capability negotiation

Electrical computers and digital processing systems: multicomput – Computer-to-computer session/connection establishing – Session/connection parameter setting

Reexamination Certificate

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C709S203000, C709S220000, C709S227000, C709S230000

Reexamination Certificate

active

07953867

ABSTRACT:
In an example embodiment a method is provided which comprises initiating at an offerer endpoint an offer message in Session Description Protocol (SDP) format. Included in the offer message is an indication of a plurality of potential configurations which the offerer endpoint is capable of supporting. The offer message is sent to an answerer endpoint to allow capability negotiation between the offerer endpoint and the answerer endpoint in a manner that is backwards compatible with existing endpoints. In an example embodiment, the indication of the plurality of potential configurations comprises assigning a new attribute or value to an existing type of SDP identifier.

REFERENCES:
patent: 6363421 (2002-03-01), Barker et al.
patent: 7142537 (2006-11-01), Shores et al.
patent: 7227865 (2007-06-01), Shaheen et al.
patent: 7243365 (2007-07-01), Rahman
patent: 7467220 (2008-12-01), del Val et al.
patent: 7468983 (2008-12-01), Requena et al.
patent: 7512118 (2009-03-01), Stephens
patent: 7702760 (2010-04-01), Latvakoski et al.
patent: 7788383 (2010-08-01), Andreasen
patent: 2005/0117580 (2005-06-01), del Val et al.
patent: 2007/0078986 (2007-04-01), Ethier et al.
patent: 2007/0276947 (2007-11-01), Panattu et al.
patent: 2008/0080568 (2008-04-01), Hughes et al.
patent: 2008/0285487 (2008-11-01), Forslow et al.
patent: 2009/0262915 (2009-10-01), Wu et al.
patent: 2009/0274146 (2009-11-01), Zhu
patent: 2009/0290573 (2009-11-01), Belling et al.
Andreasen, F., “Session Description Protocol Security Descriptions for Media Streams <draft-ietf-mmusic-sdescriptions-12.txt>”,MMUSIC, Working Group, Internet-Draft, (Sep. 2005), 37 pgs.
Andreasen, F., “Session Description Protocol (SDP) Simple Capability Declaration”,Networking Working Group, Request for Comments: 3407, (Oct. 2002), 10 pgs.
Baugher, M., “The Secure Real-Time Transport Protocol (SRTP)”,Network Working Group, Request for Comments: 3711, (Mar. 2004), 54 pgs.
Bradner, S., “Key Words for Use in RFCs to Indicate Requirement Levels”,Network Working Group, Request for Comments: 2119, (Mar. 1997), 3 pgs.
Camarillo, G., et al., “Grouping of Media Lines in the Session Description Protocol (SDP)”,Network Working Group, Request for Comments: 3388, (Dec. 2002), 20 pgs.
Camarillo, G., et al., “The Alternative Network Address Types (ANAT) Semantics for the Session Description Protocol (SDP) Grouping Framework”,Network Working Group, Request for Comments: 4091 (Jun. 2005), 7 pgs.
Crocker, D., et al., “Augmented BNF for Syntax Specifications: ABNF”,Network Working Group, Request for Comments: 2234, (Nov. 1997),17 pgs.
Crocker, D., et al., “Augmented BNF for Syntax Specifications: ABNF”,Network Working Group, Request for Comments: 4234, (Oct. 2005),16 pgs.
Freed, N., et al., “Multipurpose Internet Mail Extensions (MIME) Part Two: Media Types”,Networking Working Group, Request for Comments: 2046, (Nov. 1996), 43 pgs.
Handley, M., et al., “SDP: Session Description Protocol”,Network Working Group, Request for Comments: 4566, (Jul. 2006), 52 pgs.
Handley, M., et al., “SDP: Session Description Protocol”,Network Working Group, Request for Comments: 2327, (Apr. 1998), 40 pgs.
Huitema, C., “Real Time Control Protocol (RTCP) Attribute in Session Description Protocol (SDP)”,Network Working Group, Request for Comments: 3605, (Oct. 2003), 8 pgs.
Jennings, C., et al., “Session Initiation Protocol (SIP) Offer/Answer With Multipart Alternative <draft-jennings-sipping-multipart-02>”,Network Working Group, Internet-Draft, (Mar. 5, 2006), 14 pgs.
Kutscher, et al., “Session Description and Capability Negotiation”,Internet-Draft, draft-ietf-mmusic-sdpng-08.txt, (Feb. 20, 2005), 58 pgs.
Ott, J., et al., “Extended RTP Profile for RTCP-Based Feedback (RTP/AVPF)”,Internet-Draft, draft-ietf-avt-rtcp-feedback-11.txt, (Aug. 10, 2004), 50 pgs.
Ott, J., et al., “Extended Secure RTP Profile for RTCP-Based Feedback (RTP/SAVPF)”,Internet-Draft, draft-ietf-avt-profile-savpf-05.txt, (Dec. 2005), 18 pgs.
Ramsdell, B., “Secure/Multipurpose Internet Mail Extensions (S/MIME) Version 3.1 Message Specification”,Network Working Group, Request for Comments: 3851, (Jul. 2004), 35 pgs. Rosenberg, J., et al., “An Offer/Answer Model With the Session Description Protocol (Sdp)”, Network Working Group, Request for Comments: 3264, (Jun. 2002), 24 pgs.
Rosenberg, J., et al., “An Offer/Answer Model With the Session Description Protocol (SDP)”,Network Working Group, Request for Comments: 3264, (Jun. 2002), 24 pgs.
Rosenberg, J., et al., “SIP: Session Initiation Protocol”,Network Working Group, Request for Comments: 3261, (Jun. 2002), 272 pgs.
Schulzrinne, H., et al., “RTP Profile for Audio and Video Conferences With Minimal Control”,Network Working Group, Request for Comments: 3551, (Jul. 2003), 42 pgs.
International Application No. PCT/US2008/080872,International Search Report mailed Jul. 28, 2009, 5 pgs.
Andreasen, “SDP Capability Negotiation” , http://tools.ietf.org/html/draft-ietf-mmusic-sdp-capability-negotiation-01, (Jan. 28, 2007), 30 pgs.
Camarillo, et al., “Integration of Resource Management and Session Initiation Protocol (SIP)”, http://www.apps.ietf.org/rfc/rfc3312.html, (Oct. 2002), 23 pgs.
Kaplan, et al., “Session Description Protocol (SDP) Offer/Answer Negotiation for Best-Effort Secure Real-Time Transport Protocol”, http://209.85.165.104/u/ietf?q=cache:QKPISDHO6rYJ:tools.ietf.org/w..., 9 pgs.
Rosenberg, et al., “An Offer/Answer Model with the Session Description Protocol (SDP)”, http://www.ieff.org/rfc/rfc3264.txt, (Jun. 2002), 21 pgs.
Rosenberg, “Interactive Connectivity Establishment (ICE): A Methodology for Network Address Translator (NAT) Traversal for Offer/Answer Protocols”, http://tools/ietf.org/html/draft-ietf-mmusic-ice-13, (Jan. 16, 2007), 82 pgs.

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