WO2004021487-A3  SCHILIT B N ET AL: "M-LINKS: AN INFRASTRUCTURE FOR VERY SMALL INTERNET DEVICES" PROCEEDINGS OF THE 7TH. ANNUAL INTERNATIONAL CONFERENCE ON MOBILE COMPUTING AND NETWORKING. ROME, ITALY, JULY 16 - 21, 2001, ANNUAL INTERNATIONAL CONFERENCE ON MOBILE COMPUTING AND NETWORKING, NEW YORK, NY: ACM, US, vol. CONF. 7, 16 July 2001 (2001-07-16), pages 122-131, XP001071998 ISBN: 1-58113-422-3;  MMUSIC WG: HANDLEY ET AL: "draft-ietf-sip-rfc2543bis-00.ps - SIP: Session Initiation Protocol" INTERNET ENGINEERING TASK FORCE, XX, XX, 5 June 2000 (2000-06-05), pages 1-129, XP002164649;  SCHILIT B N ET AL: "M-LINKS: AN INFRASTRUCTURE FOR VERY SMALL INTERNET DEVICES", PROCEEDINGS OF THE 7TH. ANNUAL INTERNATIONAL CONFERENCE ON MOBILE COMPUTING AND NETWORKING. ROME, ITALY, JULY 16 - 21, 2001, ANNUAL INTERNATIONAL CONFERENCE ON MOBILE COMPUTING AND NETWORKING, NEW YORK, NY: ACM, US, vol. CONF. 7, 16 July 2001 (2001-07-16), pages 122 - 131, XP001071998, ISBN: 1-58113-422-3;  MMUSIC WG: HANDLEY ET AL: "draft-ietf-sip-rfc2543bis-00.ps - SIP: Session Initiation Protocol", INTERNET ENGINEERING TASK FORCE, XX, XX, 5 June 2000 (2000-06-05), pages 1 - 129, XP002164649;  SCHILIT B N ET AL: "M-LINKS: AN INFRASTRUCTURE FOR VERY SMALL INTERNET DEVICES", PROCEEDINGS OF THE 7TH. ANNUAL INTERNATIONAL CONFERENCE ON MOBILE COMPUTING AND NETWORKING. ROME, ITALY, JULY 16 - 21, 2001, ANNUAL INTERNATIONAL CONFERENCE ON MOBILE COMPUTING AND NETWORKING, NEW YORK, NY: ACM, US, vol. CONF. 7, 16 July 2001 (2001-07-16), pages 122 - 131, XP001071998, ISBN: 1-58113-422-3,relevantClaims[1-23],relevantPassages[&lt;pp&gt;A&lt;/pp&gt;|&lt;pp&gt;125&lt;/pp&gt;&lt;column&gt;R&lt;/column&gt;&lt;line&gt;14&lt;/line&gt;&lt;linel&gt;23&lt;/linel&gt;|&lt;pp&gt;127&lt;/pp&gt;&lt;column&gt;L&lt;/column&gt;&lt;line&gt;7&lt;/line&gt;&lt;linel&gt;17&lt;/linel&gt;];  MMUSIC WG: HANDLEY ET AL: "draft-ietf-sip-rfc2543bis-00.ps - SIP: Session Initiation Protocol", INTERNET ENGINEERING TASK FORCE, XX, XX, 5 June 2000 (2000-06-05), pages 1 - 129, XP002164649,relevantClaims[1-23],relevantPassages[&lt;pp&gt;17&lt;/pp&gt;&lt;line&gt;16&lt;/line&gt;&lt;ppl&gt;20&lt;/ppl&gt;&lt;linel&gt;27&lt;/linel&gt;]