VoIP industry, for VoIP infrastructure vendors and service providers alike. The
authors hope to have provided the reader with enough information and refer-
ences for P2P SIP to start keeping abreast this new field of communication sys-
tems that are symmetric in nature, self-organizing, and distributed [5].Prediction: The Long Road Ahead
Making abstraction of all the technology novelties, the dismemberment of the
business models and networks in the telecom world is a huge economic dis-
ruption and will not take place without a long regulatory and political evolu-
tion, to be digested in the economy of most countries. As often noted by many
adults, however, “Watch our children; how they communicate, play, and work
using the Net.”Summary
Internet communications based on SIP provide a sheer inexhaustible source of
multimedia communications and their integration with personal and business
applications, entertainment, information and e-commerce. The replacement of
the telephone networks with Internet communications has only just started.
Client-server communications based on SIP are mature, though the industry
may need more time to catch up with the standards.
P2P communications and entertainment will be, however, the next disrup-
tion on the Internet, although many in the communications and VoIP industry
are just becoming aware of P2P.References
[1] “SIP Beyond VoIP” by H. Sinnreich, A. Johnston, and R. Sparks. VON Pub-
lishing LLC, 2005.
[2] “Obtaining and Using Globally Routable User Agent (UA) URIs (GRUU) in
the Session Initiation Protocol (SIP)” by J. Rosenberg. Internet Draft, IETF,
October 2005, work in progress.
[3] “Cyberspace is Dead–well, the word anyway” Wired Magazine, February
2006, p. 39.
[4] “Instant Communication and Collaboration across Businesses, Applica-
tions and Devices. http://tello.com.
[5] “Survey of Research towards Robust Peer-to-Peer Search Methods” by J.
Risson and T. Moors. Technical Report, University of New South Wales,
September 2004.356 Chapter 21