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The IP Multimedia Subsystem or IP Multimedia Core Network Subsystem (IMS) is a standardised architectural framework for delivering IP multimedia services. Historically, mobile phones have provided voice call services over a circuit-switched-style network, rather than strictly over an IP packet-switched network.
Ericsson AXE telephone exchanges support lawful intercepts via the remote-control equipment subsystem (RES), which carries out the tap, and the interception management system (IMS), software used for initiating the tap, which adds the tap to the RES database. In a fully operating lawful interception system the RES and IMS both create logs of ...
In 2009, Ericsson bought the CDMA2000 and LTE business of Nortel's carrier networks division for US$1.18 billion; [54] Bizitek, a Turkish business support systems integrator; the Estonian manufacturing operations of electronic manufacturing company Elcoteq; and completed its acquisition of LHS. [55]
Ericsson AXE telephone exchanges support lawful intercepts via the remote-control equipment subsystem (RES), which carries out the tap, and the interception management system (IMS), software used for initiating addition of the tap to the RES database.
In the context of the Release 8 of 3GPP standards, VCC was replaced by a wider concept that covers all services provided by IMS.This work resulted in the specification of IMS Service Continuity [1] and IMS Centralized Services (ICS), [2] which are meant to be used in particular to provide the continuity of voice calls between LTE and legacy 2G/3G networks.
GPRS Tunnelling Protocol is the defining IP-based protocol of the GPRS core network. Primarily it is the protocol which allows end users of a GSM or WCDMA network to move from place to place while continuing to connect to the Internet as if from one location at the Gateway GPRS support node (GGSN).
Multimedia Broadcast Multicast Services (MBMS) is a point-to-multipoint interface specification for existing 3GPP cellular networks, which is designed to provide efficient delivery of broadcast and multicast services, both within a cell as well as within the core network.
System Architecture Evolution (SAE) is the core network architecture of mobile communications protocol group 3GPP's LTE wireless communication standard.. SAE is the evolution of the GPRS Core Network, but with a simplified architecture; an all-IP Network (AIPN); support for higher throughput and lower latency radio access networks (RANs); and support for, and mobility between, multiple ...