TISPAN
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The Telecoms & Internet converged Services & Protocols for Advanced Networks (TISPAN) is a standardization body of ETSI, specializing in fixed networks and Internet convergence. It was formed in 2003 from the amalgamation of the ETSI bodies Telecommunications and Internet Protocol Harmonization Over Networks (TIPHON) and Services and Protocols for Advanced Networks (SPAN)
TISPAN’s release 1 architecture is based upon the 3GPP IP Multimedia Subsystem (IMS) Release 6 and 3GPP2 Revision A architectures. However, TISPAN has adopted a more generalised model able to address a wider variety of network and service requirements. This overall architecture is based upon the concept of cooperating subsystems sharing common components. This subsystem-oriented architecture enables the addition of new subsystems over the time to cover new demands and service classes. It also ensures that the network resources, applications, and user equipment (mostly inherited from IMS where possible) are common to all subsystems and therefore ensure user, terminal and service mobility to the fullest extent possible, including across administrative boundaries.
TISPAN is working on the next release of the NGN. Please watch the official site for information
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