IMS Structure

2 Jun

File:IMS Structure.png

Abbreviation Meaning
ATCF Access Transfer Control Function
ATGW Access Transfer Gateway
BGCF Breakout Gateway Control Function
EATF Emergency Access Transfer Function
E-CSCF Emergency Call Session Control Function
GGSN Gateway GPRS Support Node
HSS Home Subscriber Server
I-BCF Interconnection Border Control Function
I-BGF Interconnection Border Gateway Function
I-CSCF Interrogating Call Session Control Function
IM-MGW IMS Multi Media Gateway
IMS IP Multimedia Subsystem
IM-SSF IP Multimedia Service Switching Function
IP-SM-GW IP Short Message Gateway
MGCF Media Gateway Control Function
MGW Media Gateway
MME Mobility Management Entity
MMTel Multimedia Telephony Service
MRFC Multimedia Resource Function Controller
MRFP Multimedia Resource Function Processor
MSS Mobile Switching Server
PCRF Policy and Charging Rules Function
P-CSCF Proxy Call Session Control Function
SAE-GW System Architecture Evolution Gateway
SBC Session Border Controller
SCC-AS Service Centralization and Continuity Application Server
SCP Service Control Point
S-CSCF Service Call Session Control Function
SGSN Serving GPRS Support Node
SLF Subscriber Locator Function
SMSC Short Message Service Centre
TrGW Trunking Gateway




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