The IP Multimedia Subsystem (IMS) is an architectural framework for delivering internet protocol (IP) multimedia to mobile users.
It was originally designed by the wireless standards body 3rd Generation Partnership Project (3GPP), and is part of the vision for evolving mobile networks beyond GSM. Its original formulation (3GPP R5) represented an approach to delivering 'Internet services' over GPRS.
This vision was later updated by 3GPP,...
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http://en.wikipedia.org/wiki/IP_Multimedia_Subsystem
5/2/2008
