Requirements, Terminology and Framework for Exigent Communications

Document Type Expired Internet-Draft (individual)
Authors Henning Schulzrinne  , Hannes Tschofenig  , Steve Norreys 
Last updated 2010-03-06
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


Various agencies need to provide information to the restricted group of persons or even to the generic public before, during and after emergency situations. While many aspects of such systems are specific to national or local jurisdictions, emergencies span such boundaries and notifications need to reach visitors from other jurisdictions. This document summarizes requirements for protocols to allow alerts to be conveyed to IP-based end points.


Henning Schulzrinne (
Hannes Tschofenig (
Steve Norreys (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)