Using the International Mobile station Equipment Identity (IMEI) Uniform Resource Name (URN) as an Instance ID
RFC 7255
| Document | Type |
RFC - Informational
(May 2014; No errata)
Was draft-allen-dispatch-imei-urn-as-instanceid (individual in rai area)
|
|
|---|---|---|---|
| Author | Andrew Allen | ||
| Last updated | 2015-10-14 | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | (None) | |
| Document shepherd | Mary Barnes | ||
| Shepherd write-up | Show (last changed 2013-07-11) | ||
| IESG | IESG state | RFC 7255 (Informational) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Gonzalo Camarillo | ||
| Send notices to | atle.monrad@ericsson.com | ||
| IANA | IANA review state | IANA OK - No Actions Needed | |
| IANA action state | No IANA Actions | ||
Internet Engineering Task Force (IETF) A. Allen, Ed.
Request for Comments: 7255 Blackberry
Category: Informational May 2014
ISSN: 2070-1721
Using the International Mobile station Equipment Identity (IMEI)
Uniform Resource Name (URN) as an Instance ID
Abstract
This specification defines how the Uniform Resource Name (URN)
reserved for the Global System for Mobile Communications Association
(GSMA) identities and its sub-namespace for the International Mobile
station Equipment Identity (IMEI) can be used as an instance-id. Its
purpose is to fulfill the requirements for defining how a specific
URN needs to be constructed and used in the '+sip.instance' Contact
header field parameter for outbound behavior.
Status of This Memo
This document is not an Internet Standards Track specification; it is
published for informational purposes.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Not all documents
approved by the IESG are a candidate for any level of Internet
Standard; see Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc7255.
Allen Informational [Page 1]
RFC 7255 Using IMEI URN as an Instance ID May 2014
Copyright Notice
Copyright (c) 2014 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................2
2. Terminology .....................................................3
3. Background ......................................................3
4. 3GPP Use Cases ..................................................5
5. User Agent Client Procedures ....................................5
6. User Agent Server Procedures ....................................6
7. 3GPP SIP Registrar Procedures ...................................6
8. Security Considerations .........................................7
9. Acknowledgements ................................................7
10. References .....................................................8
10.1. Normative References ......................................8
10.2. Informative References ....................................8
1. Introduction
This specification defines how the Uniform Resource Name (URN)
reserved for the Global System for Mobile Communications Association
(GSMA) identities and its sub-namespace for the International Mobile
station Equipment Identity (IMEI) as specified in RFC 7254 [1] can be
used as an instance-id as specified in RFC 5626 [2] and also as used
by RFC 5627 [3].
RFC 5626 [2] specifies the '+sip.instance' Contact header field
parameter that contains a URN as specified in RFC 2141 [4]. The
instance-id uniquely identifies a specific User Agent (UA) instance.
This instance-id is used as specified in RFC 5626 [2] so that the
Session Initiation Protocol (SIP) registrar (as specified in RFC 3261
[9]) can recognize that the contacts from multiple registrations
correspond to the same UA. The instance-id is also used as specified
Allen Informational [Page 2]
RFC 7255 Using IMEI URN as an Instance ID May 2014
by RFC 5627 [3] to create Globally Routable User Agent URIs (GRUUs)
that can be used to uniquely address a UA when multiple UAs are
registered with the same Address of Record (AoR).
RFC 5626 [2] requires that a UA SHOULD create a Universally Unique
Identifier (UUID) URN as specified in RFC 4122 [6] as its instance-id
but allows for the possibility to use other URN schemes. Per
RFC 5626, "If a URN scheme other than UUID is used, the UA MUST only
use URNs for which an RFC (from the IETF stream) defines how the
specific URN needs to be constructed and used in the "+sip.instance"
Contact header field parameter for outbound behavior". This
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