Indicating User Agent Capabilities in the Session Initiation Protocol (Sip)

By Rosenberg, J.

Book Id: WPLBN0000693938
Format Type: PDF eBook:
File Size: 0.1 MB
Reproduction Date: 2005

Title:	Indicating User Agent Capabilities in the Session Initiation Protocol (Sip)
Author:	Rosenberg, J.
Volume:
Language:	English
Subject:	Social Psychology, Language, Sociology
Collections:	Technical eBooks and Manuals Collection, Technical eBooks Collection
Historic Publication Date:
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Citation APA MLA Chicago Rosenberg, B. J. (n.d.). Indicating User Agent Capabilities in the Session Initiation Protocol (Sip). Retrieved from http://gutenberg.cc/

Description
Technical Reference Publication

Excerpt
Introduction: Session Initiation Protocol (SIP) [1] user agents vary widely in their capabilities and in the types of devices they represent. Frequently, it is important for another SIP element to learn the capabilities and characteristics of a SIP UA. Some of the applications of this information include...

Table of Contents
Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 4 3. Definitions . . . . . . . . . . . . . . . . . . . . . . . . . 4 4. Usage of the Content Negotiation Framework . . . . . . . . . . 6 5. Computing Capabilities . . . . . . . . . . . . . . . . . . . . 7 6. Expressing Capabilities in a Registration . . . . . . . . . . 10 7. Indicating Feature Sets in Remote Target URIs . . . . . . . . 12 8. OPTIONS Processing . . . . . . . . . . . . . . . . . . . . . . 13 9. Contact Header Field . . . . . . . . . . . . . . . . . . . . . 13 10. Media Feature Tag Definitions . . . . . . . . . . . . . . . . 14 10.1. Audio . . . . . . . . . . . . . . . . . . . . . . . . . 15 10.2. Application . . . . . . . . . . . . . . . . . . . . . . 16 10.3. Data. . . . . . . . . . . . . . . . . . . . . . . . . . 16 10.4. Control . . . . . . . . . . . . . . . . . . . . . . . . 17 10.5. Video . . . . . . . . . . . . . . . . . . . . . . . . . 17 10.6. Text. . . . . . . . . . . . . . . . . . . . . . . . . . 18 10.7. Automata. . . . . . . . . . . . . . . . . . . . . . . . 18 10.8. Class . . . . . . . . . . . . . . . . . . . . . . . . . 19 10.9. Duplex. . . . . . . . . . . . . . . . . . . . . . . . . 20 10.10. Mobility. . . . . . . . . . . . . . . . . . . . . . . . 20 10.11. Description . . . . . . . . . . . . . . . . . . . . . . 21 10.12. Event Packages. . . . . . . . . . . . . . . . . . . . . 22 10.13. Priority. . . . . . . . . . . . . . . . . . . . . . . . 22 10.14. Methods . . . . . . . . . . . . . . . . . . . . . . . . 23 10.15. Extensions. . . . . . . . . . . . . . . . . . . . . . . 24 10.16. Schemes . . . . . . . . . . . . . . . . . . . . . . . . 24 10.17. Actor . . . . . . . . . . . . . . . . . . . . . . . . . 25 10.18. Is Focus. . . . . . . . . . . . . . . . . . . . . . . . 26 11. Security Considerations . . . . . . . . . . . . . . . . . . . 26 11.1. Considerations for Media Feature Tags . . . . . . . . . 26 11.2. Considerations for Registrations. . . . . . . . . . . . 27 11.3. Considerations for OPTIONS Responses. . . . . . . . . . 28 11.4. Considerations for Dialog Initiating Messages . . . . . 28 12. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 28 12.1. SIP Media Feature Tag Registration Tree . . . . . . . . 28 12.2. Media Feature Tags. . . . . . . . . . . . . . . . . . . 29 12.3. SIP Option Tag. . . . . . . . . . . . . . . . . . . . . 30 13. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 30 14. References . . . . . . . . . . . . . . . . . . . . . . . . . . 31 14.1. Normative References. . . . . . . . . . . . . . . . . . 31 14.2. Informative References. . . . . . . . . . . . . . . . . 31 Appendix. Overview of RFC 2533. . . . . . . . . . . . . . . . . . 33 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . . 35 Full Copyright Statement . . . . . . . . . . . . . . . . . . . . . 36