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GSM Terminology
VLR Visitor Location Register
HLR Home Location Register
AUC Authentication center
EIR Equipment Identification
MSC Mobile Switching center
BTS Base Transceiver Station
BSC Base Station Controller
SCP Service control point
SDP Service Data Point
SSF Service Switching Functionality
SMSC Short Message Switching Center
MMSC Multimedia Messaging Service
USSD Unstructured Supplementary Service Data
GPRS General Packet Radio Service
EDGE Enhanced Data Rates for GSM Evolution
SGSN Serving GPRS Support Node
GGSN Gateway GPRS Support Node
HSCSD High-Speed Circuit-Switched Data
IVR Interactive voice response
 
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3 replies [Last post]
Wed, 06/10/2009 - 22:23
9797
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VISHNU'S BLOG
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The crossbar switch was most popular from 1950 to 1980. Most new telephone switches around the world were based on some form of crossbar switching system. There were several different manufacturers, and from the 1940s and onward, Ericsson was one of the leaders in the development of this technology.

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