# Elements List

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SS7 | Signaling System No. 7
AAS | Audio Announcement System
AMRMG | AMR Media Gateway
AUC | Authentication Center
EIR | Equipment Identity Register
GbC | Gb Converter
HLR | Home Location Register
iGRS | intelligent GPRS Routing System
iPALIM | IP Private A-link Intelligent Multiplexer
iRLS | intelligent RTP Local Switching
MCA | MMS Charging Agent
MHC | Multisite HLR Coordinator
MNP | Mobile Number Portability System
MSC | Mobile Switching Center
OPPS | Open-Prepaid-Roaming Public-Private System
PPS | Prepaid System
SMEG | SMS Email Gateway
SMPP | Short Message Peer-to-Peer
SMSC | Short Message Service Center
TMG | Trunk Media Gateway
UES | User Equipment Simulator
VLR | Visitor Location Register
VIM | Voice Insertion Monitor
VSS | Voice Service System

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