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Emergency Services for Internet Telephony Systems

Document Type Expired Internet-Draft (individual)
Expired & archived
Authors Henning Schulzrinne , Brian Rosen
Last updated 2004-10-25
RFC stream (None)
Intended RFC status (None)
Stream Stream state (No stream defined)
Consensus boilerplate Unknown
RFC Editor Note (None)
IESG IESG state Expired
Telechat date (None)
Responsible AD (None)
Send notices to (None)

This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:


Summoning emergency help is a core feature of telephone networks. This document describes how the Session Initiation Protocol (SIP) can be used to provide advanced emergency services for voice-over-IP (VoIP). The architecture employs standard SIP features and requires no new protocol mechanisms. DNS is used to map civil and geospatial locations to the appropriate emergency call center.


Henning Schulzrinne
Brian Rosen

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