Telecom Glossary

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SBC – Access front end node. It deals with access policies and media handling

CSCF – Signalling switching in IMS Core Nw. Does not handle media

HSS – Owner of registration data and triggers

ENUM – translator for E164 to IP

CPE – Access Router in customer’s premise

MGCF – Access Gateway for PLMN (MSS) handling signalling

MGW – Gateway for PLMN handling Media

MRF – IMS IVR for announcements and media bridging

TFTP – Device Configuration Manager

NPS – Network Presence Server

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OLO – Other Licensed Operator


SCF -Service Control Function


SIM – Service Interaction Manager


SIP – Session Initiation Protocol


SMPP – Short Message Peer to Peer Protocol


SMSC – Short Message Service Centre


SPA – Service Package Application


SRF – Specialized Resource Function


SSF – Service Switching Function

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