I-D Action:draft-procter-bliss-call-park-extension-05.txt

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	Title           : Implementing Call Park and Retrieve using the Session Initiation Protocol (SIP)
	Author(s)       : M. Procter
	Filename        : draft-procter-bliss-call-park-extension-05.txt
	Pages           : 19
	Date            : 2009-06-08

Call Park and Call Retrieve are useful telephony services that are
familiar to many users.  Existing implementations using the Session
Initiation Protocol (SIP) show that a variety of approaches can be
taken, with varying degrees of interoperability.  This draft
discusses a number of feature variations, and how they may be
implemented using existing techniques.  An additional URI parameter
is also described, which enables further common use-cases to be
implemented.

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http://www.ietf.org/internet-drafts/draft-procter-bliss-call-park-extension-05.txt

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