A New Internet-Draft is available from the on-line Internet-Drafts directories.
Title : URI Leasing in the Session Initiation Protocol (SIP)
Author(s) : J. Rosenberg
Filename : draft-rosenberg-sipping-lease-00.txt
Pages : 23
Date : 2003-2-12
Several applications of the Session Initiation Protocol (SIP) require
a user agent (UA) to construct and distribute a URI which can be used
by anyone on the Internet to route a call to that specific UA
instance. An example of such an application is call transfer, based
on the REFER method. To date, a variety of techniques have been
proposed for the contruction of such URI. All of them have fatal
drawbacks. This document proposes that the problem is actually one
of URI leasing - a feature whereby a UA can dynamically request the
creation of an address-of-record (AOR) within a domain. Requirements
for a URI leasing mechanism are outlined.
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