I-D ACTION:draft-lowekamp-sipping-ice-for-sip-00.txt

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	Title		: Using ICE to establish SIP Dialogs
	Author(s)	: B. Lowekamp, D. Bryan
	Filename	: draft-lowekamp-sipping-ice-for-sip-00.txt
	Pages		: 11
	Date		: 2007-11-13

   This draft explores a way SIP can be extended to allow a new dialog
   directly between the endpoints to replace an initial dialog that had
   one or more proxies in the signalling path.  This technique relies on
   ICE to perform hole punching that allows a direct connection to be
   used in deployments where a sip-outbound proxy or SBC is used to
   establish SIP connections across NAT or firewall boundaries.  It can
   also be used to replace such a dialog with a secure connection
   directly between the endpoints.  This technique can be applied to
   traditional proxy-based SIP routing as well as to emerging P2PSIP
   deployments that lack centrally located proxies.

   This draft describes early work that evolved from ideas initially
   developed for P2PSIP that are no longer being pursued.  We are
   interested in feedback on whether there is broader interest in these
   techniques.

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