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IP Multimedia Subsystem
(redirected from Home Subscriber Server)

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IP Multimedia Subsystem

An integrated network for telecommunications carriers that uses the IP protocol as its foundation for packetized voice, video and data. Supporting voice over IP (VoIP) in all its flavors (SIP, H.323, MGCP, etc.), the IP Multimedia Subsystem (IMS) is designed to interface with the PSTN and provide traditional telephony services such as 800 numbers, caller ID and local number portability.

Converged Wireless and Wireline
Part of the 3GPP project, the IMS was conceived to offer full support for every type of communications session in today's world whether over wireless or landline, including instant messaging (IM), push-to-talk, videoconferencing and video-on-demand (VOD). It is the 21st century initiative for carrier networks supporting IP convergence. See 3GPP, VoIP and IP on Everything.



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The testing pairs Bridgewater Systems Home Subscriber Server (HSS) with Oracle([R]) Communication and Mobility Server, a third-generation, programmable Session Initiation Protocol (SIP) and Presence application server and a key component of Oracle Service Delivery Platform (SDP).
Bridgewater Systems and Oracle Conduct Interoperability Testing by Business Wire
Within an IMS network, the Tatara Convergence Server interfaces to the Serving Call Session Control function (S-CSCF) over the IMS Service Control (ISC) interface and to the Home Subscriber Server (HSS) over the 3GPP/2 defined Sh interface.
Tatara Systems Announces Major Product Portfolio Expansion for ... by Business Wire
The IMS@vantage product offering includes the Multimedia Session Controller CFX-5000 and the Home Subscriber Server CMS-8200, as well as the Media Gateway Controller CFX-5200 and the Media Gateway CMG-3000.
Siemens and Cingular Sponsor New Multi-Million Dollar Networking Lab ... by Business Wire
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