Network Working Group I. Faynberg
Internet Draft Lucent Technologies
<draft-ietf-spirits-sip-evt-package-02.txt> J. Gato
Expires September 2002 Vodaphone
V. Gurbani
H. Lu
Lucent Technologies
Toward the Definition of the SIP Events Package for SPIRITS Protocol
Status of this Memo
This document is an Internet-Draft and is in full conformance with all
provisions of Section 10 of RFC2026.
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1. Abstract
This document describes the definition of the SIP Event
Package for SPIRITS, based on on the structure defined in [1], the
SPIRITS protocol requirements documented in [2], the overall SPIRITS
Architecture presented in RFC 3136 [3], the discussion at the
Salt Lake City meeting, and the subsequent decisions. To this end,
the document defines the package and event names, and addresses
the SUBSCRIBE paramaters.
This document is not intended as a stand-alone one; instead, it is
expected to be a module of the future SPIRITS protocol RFC when merged
with the work developed in [4] and other protocol-specific contributions.
For this reason, this document is not self-sufficient; the information in
references [2] and [3] is essential in understanding this Internet-Draft.
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2. Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in RFC 2119.
3. Introduction
The rest of this document is organized as follows: section 4 defines the
package; section 5 provides a table for IANA registration; and sections
6, 7, and 8 respectively contain, acknowledgements, references, and
authors' addresses.
4. Definition of the Packages' and Subpackages' Names
The SPIRITS events package, named "spirits," has two subpackages:
"INDPs," for the events that correspond to IN Detection points;
and "user-prof", for the events related to the user profile
information. The semantics of these packages is explained in
the following subsections.
4.1 Sub-package "INDPs"
INDPs is a terminal sub-package. The information specific to the IN
Detection Points (DPs), including the names of the DPs is encoded..
According to [2], the following DPs are handled in this way:
"OAA" (origination_attempt_authorized)
"AI" (Analyzed Info)
"CI" (Collected_Info)
"OA" (O_Answer)
"OTS" (O_Term_Seized)
"TAns"(T_Answer)
"ONA" (O_No_Answer)
"RSF" (Route_Select_Failure)
"TNA" (T_No_Answer)
"OCB" (O_Called_Party_Busy)
"OMC" (O_Mid_Call)
"TMC" (T_Mid_Call)
"OA" (O_Abandon)
"OD" (O_Disconnect)
"Tab" (T_Abandon)
"TD" (T_Disconnect)
"TAA" (Termination_Attempt_Authorized)
"FSA" (Facility_Selected_and_Available)
"TB" (T_Busy)
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The DP information is XML-encoded and carried in
the body of the SUBSCRIBE, as shown in the following
example:
SUBSCRIBE sip:gateway.provide.com SIP/2.0
Events: spirits.INDPs
Content-Type: application/spirits-events
Content-Length: 27
<spirit-event>
<DP=CI/>
</spirit-event>
...
The XML schema and DTD for the bodies of both the SUBSCRIBE and
NOTIFY messages are described in the companion document.
4.2 Sub-package "user-prof"
Similarly, the "user-prof" sub-package is terminal.
Its specific events are
"LUS" (Location Update in the same VLR service area)
"LUA" (Location Update in another VLR service area)
"IA" (IMSI Attach)
"MSID" (MS-initated IMSI Detach)
"NID" (Network-initiated IMSI Detach)
An example of encoding this information
in the body of the SUBSCRIBE is as follows:
SUBSCRIBE sip:gateway.provide.com SIP/2.0
Events: spirits.INDPs
Content-Type: application/spirits-events
Content-Length: 27
<spirit-event>
<event=LUS>
</spirit-event>
...
Figure 1 summarizes the package naming and the respective
functions of both packages as a tree, whose leaves denote
the XML-encoded information.
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spirits
/(
/ (
/ (
INDPs user-prof
/ (
/ (
/ (
+-----------------+ +--------------+
| OAA, AI, CI, OA,| | LUS, LUA, IA |
| TAns, ONA, RSF, | | MSID, NID |
| TNA, OCB, OMC, | +--------------+
| TMC, OA, OD, |
| Tab, TD, TAA, |
| FSA, TB, OTS |
+-----------------+
Figure 1: The Tree for SPIRITS Subpackages
5. IANA Registration Information
The package names are further summarized in Table 1 for IANA
registration, in the format suggested in [1].
Package Name Type Contact Reference
------------ ---- ------- ---------
spirits package [Lu] [SPIRITS Protocol]
INDPs sub-package [Lu] [SPIRITS Protocol]
[Lu] Hui-Lan Lu <hui-lan.lu@bell-labs.com>
REFERENCES
----------
[SPIRITS Protocol] *TBD*
Table 1: Package Names for IANA Consideration
6. Acknowledgements
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The authors are grateful to Wayne Zeuch for providing us with the
break-out of DPs among the IN Capability sets and Lawrence Conroy for
many an incisive comments and suggestions.
7. References
[1] A. Roach, Event Notification in SIP, <draft-ietf-sip-events-
00.txt>, Work in Progress. July 2001.
[2] Faynberg, I. (Ed.), J. Gato, H. Lu, and L. Slutsman <draft-ietf-
spirits-reqs-04.txt>, Work in Progress. February 2002.
[3] Slutsman, L (Ed.) et al, The Spirits Architecture. RFC 3136
Informational). June 2001.
[4] Brusilovsky, A. et al., On selection of IN parameters to be
carried by the SPIRITS Protocol. draft-ietf-spirits-in-01.txt. Work
in Progress. September 2001.
8. Authors' Addresses
Igor Faynberg
Bell Labs/Lucent Technologies
Room 4D-601A, 101 Crawfords Corner Road
Holmdel, New Jersey, 07733
Phone: (732) 949-0137
Email: faynberg@lucent.com
Jorge Gato Airtel
Vodaphone
Avda de Europa, 1.
28108 Alcobendas (Madrid).
Spain
Tel: +34 607 13 31 10 Fax. +34 607 13 30 57
Email: jgato@vodaphone.es
Vijay Gurbani
2000 Naperville Rd., Room 6G-440
Naperville, IL 60566-7033 USA
Phone: +1 630 224 0216
Email: vkg@lucent.com
Hui-Lan Lu
Bell Labs/Lucent Technologies
Room 4C-607A, 101 Crawfords Corner Road
Holmdel, New Jersey, 07733
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Phone: (732) 949-0321
Email: huilanlu@lucent.com
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