Dear experts,

FYI.

Simão

-----Original Message----- From: rfc-editor@rfc-editor.org [mailto:rfc-editor@rfc-editor.org] Sent: 17 May 2006 00:10 To: ietf-announce@ietf.org; rfc-dist@rfc-editor.org Cc: tsvwg@ietf.org; rfc-editor@rfc-editor.org Subject: RFC 4542 on Implementing an Emergency Telecommunications Service(ETS) for Real-Time Services in the Internet Protocol Suite

A new Request for Comments is now available in online RFC libraries.

RFC 4542

Title: Implementing an Emergency Telecommunications Service (ETS) for Real-Time Services in the Internet Protocol Suite Author: F. Baker, J. Polk Status: Informational Date: May 2006 Mailbox: fred@cisco.com, jmpolk@cisco.com Pages: 42 Characters: 99770 Updates/Obsoletes/SeeAlso: None

I-D Tag: draft-ietf-tsvwg-mlpp-that-works-04.txt

URL: http://www.rfc-editor.org/rfc/rfc4542.txt

RFCs 3689 and 3690 detail requirements for an Emergency Telecommunications Service (ETS), of which an Internet Emergency Preparedness Service (IEPS) would be a part. Some of these types of services require call preemption; others require call queuing or other mechanisms. IEPS requires a Call Admission Control (CAC) procedure and a Per Hop Behavior (PHB) for the data that meet the needs of this architecture. Such a CAC procedure and PHB is appropriate to any service that might use H.323 or SIP to set up real-time sessions. The key requirement is to guarantee an elevated probability of call completion to an authorized user in time of crisis.

This document primarily discusses supporting ETS in the context of the US Government and NATO, because it focuses on the Multi-Level Precedence and Preemption (MLPP) and Government Emergency Telecommunication Service (GETS) standards. The architectures described here are applicable beyond these organizations. This memo provides information for the Internet community.

This document is a product of the Transport Area Working Group Working Group of the IETF.

INFORMATIONAL: This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.

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Joyce K. Reynolds and Sandy Ginoza USC/Information Sciences Institute

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