| توضیحات: | The Internet Protocol (IP) Multimedia Subsystem, better known as "The IMS", is
based on the specification of the Session Initiation Protocol (SIP) as standardized by
the Internet Engineering Task Force (IETF). But SIP as a Protocol is only one part
of it; the IMS is more than just a protocol. It is an architecture for the convergence of
data, speech and mobile networks and is based on a wide range of protocols, of
which most have been developed by the IETF. It combines and enhances them to
allow real time services on top of the Universal Mobile Telecommunications System
(UMTS) packet-switched domain. | تعداد بازدید: 1338 
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