I-D ACTION:draft-schulzrinne-sipping-emergency-req-01.txt

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	Title		: Requirements for Session Initiation Protocol (SIP)-based Emergency Calls
	Author(s)	: H. Schulzrinne
	Filename	: draft-schulzrinne-sipping-emergency-req-01.txt,.pdf
	Pages		: 20
	Date		: 2004-10-25
	
This document enumerates requirements for emergency calls in VoIP and
   general Internet multimedia systems.  We divide the requirements into
   'trunk replacement' and 'end-to-end'.  Trunking solutions only
   exchange the emergency call center's circuit-switched access by an
   IP-based system.  The requirements for end-to-end IP-based emergency
   calling address functional and security issues for determining the
   correct emergency address, for identifying the appropriate emergency
   call center and for identifying the caller and its location.  While
   we focus on systems that employ the Session Initiation Protocol
   (SIP), many of the requirements may also apply to other environments,
   such as those using H.248/Megaco, MGCP or H.323.

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