Internet Engineering Task Force SIP WG
Internet Draft G. Camarillo
Ericsson
draft-ietf-sip-uri-parameter-reg-00.txt
August 18, 2003
Expires: February 2004
The Internet Assigned Number Authority Universal Resource
Identifier Parameter Registry for the Session Initiation Protocol
STATUS OF THIS MEMO
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Abstract
This document creates an IANA registry for SIP URI and SIPS URI
parameters. It also lists the already existing parameters to be used
as initial values for that registry.
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Table of Contents
1 Introduction ........................................ 3
2 Terminology ......................................... 3
3 Use of the Registry ................................. 3
4 IANA Considerations ................................. 3
4.1 SIP and SIPS URI Parameters Sub-Registry ............ 3
5 Security Considerations ............................. 3
6 Acknowledgements .................................... 3
7 Authors' Addresses .................................. 4
8 Normative References ................................ 4
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1 Introduction
RFC3261 [1] allows new SIP URI and SIPS URI parameters to be defined.
However, RFC3261 omitted an IANA registry for them. This document
creates such a registry.
2 Terminology
In this document, the key words "MUST", "MUST NOT", "REQUIRED",
"SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY",
and "OPTIONAL" are to be interpreted as described in RFC 2119 [2] and
indicate requirement levels for compliant SIP implementations.
3 Use of the Registry
RFCs defining SIP URI or SIPS URI parameters MUST register them with
IANA as described below.
4 IANA Considerations
Section 27 of RFC 3261 [1] creates an IANA registry for method names,
header field names, warning codes, status codes, and option tags.
This specification instructs the IANA to create a new sub-registry
under http://www.iana.org/assignments/sip-parameters:
o SIP/SIPS URI Parameters
4.1 SIP and SIPS URI Parameters Sub-Registry
New SIP and SIPS URI parameters are registered by the IANA. When
registering a new SIP or SIPS parameter, the following information
MUST be provided.
o Name of the parameter.
o Reference to the RFC defining the parameter
Table 1 contains the initial values for this sub-registry.
5 Security Considerations
There are no security considerations associated to this document.
6 Acknowledgements
Jonathan Rosenberg, Henning Schulzrinne, Rohan Mahy and Dean Willis
provided useful comments.
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Parameter Name Reference
__________________________
comp RFC 3486
lr RFC 3261
maddr RFC 3261
method RFC 3261
transport RFC 3261
ttl RFC 3261
user RFC 3261
Table 1: IANA SIP and SIPS URI parameter sub-registry
7 Authors' Addresses
Gonzalo Camarillo
Ericsson
Advanced Signalling Research Lab.
FIN-02420 Jorvas
Finland
electronic mail: Gonzalo.Camarillo@ericsson.com
8 Normative References
[1] J. Rosenberg, H. Schulzrinne, G. Camarillo, A. R. Johnston, J.
Peterson, R. Sparks, M. Handley, and E. Schooler, "SIP: session
initiation protocol," RFC 3261, Internet Engineering Task Force, June
2002.
[2] S. Bradner, "Key words for use in RFCs to indicate requirement
levels," RFC 2119, Internet Engineering Task Force, Mar. 1997.
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Internet Draft SIP August 18, 2003
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