Hi am PRAVAT i would like to get details on ip multimedia subsystem related interview question and answer. One of my friend said ip multimedia subsystem related interview question and answer will be available here. my email id is mail2pravatrout[at]gmail.com. Please do the needful.
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The IP Multimedia Subsystem (IMS) is a concept for an integrated
network of telecommunications carriers that would facilitate the use
of IP (Internet Protocol) for packet communications in all known forms
over wireless or landline. Examples of such communications include
traditional Telephony, fax, e-mail, Internet access, Web services,
Voice over IP (VoIP), instant messaging (IM), videoconference sessions
and video on demand (VoD).
IMS was originally conceived in the late 1990s as part of a plan for
worldwide deployment of mobile telecommunications networks that would
interface with the public switched telephone network (PSTN). IMS is
part of the Third Generation Partnership Project (3GPP).
In its ideal form, IMS would offer unprecedented convenience for
individual and business users. Flexibility and expandability would
allow vendors to bring new services online as those services emerge
and evolve, without forcing subscribers to frequently change carriers.
Reality has fallen short of this ideal. It is becoming easier for
individuals and businesses to access content outside the control of
traditional telecommunications carriers. Small operators may be less
willing than large carriers to embrace the IMS paradigm. Some analysts
believe that total convergence -- the universal availability of all
forms of telecommunications over IP -- may be decades away or may
never be realized at all.