IP Multimedia Subsystem
MultiMedia Domain
Next Generation Network
Fixed Mobile Convergence
Session Initiation Protocol
Internet Engineering Task Force
Session Initiation Protocol
国際電気通信連合電気通信標準化部門
European Telecommunications Standards Institute
General Packet Radio Service
IMS Subscriber Identity Module
Universal Subscriber Identity Module
Removal User Identity Module
Call Session Control Function
Proxy CSCF
Serving CSCF
Interrogating CSCF
Home Subscriber Server
Subscription Locator Function
Multimedia Resource Function
MRF Controller
MRF Processor
Public Switched Telephone Network
Public Land Mobile Networki
Breakout Gateway Control Function
Media Gateway Control Function
ISDN User Part
IMS Media Gateway
Application Function
Policy Decision Function
Policy and Charging Rules Function
Policy and Charging Enforcement Function
Common Open Policy Service
Policy Enforcement Point
IMS Subscriber Identity Module
IMS Public User Identity
IMS Private User Identity
Network Access Identifier
International Mobile Subscriber Identity
IMS Communication Service Identifier
Public Service Identity
Authentication, Authorization and Accounting
Remote Authentication Dial In User Service
Media Gateway Control
XML Configuration Access Protocol
Multimedia Resource Function Processor
Media Gateway Control Function
Dynamic Host Configuration Protocol
Gateway GPRS Serving Node
Packet Data Protocol Context
Application Server
IP multimedia Service Control
initial Filter Criteria
Service Point Trigger
SIP-Service Delivery Platform
Push-to-talk over Cellular
Real-time Transport Control Protocol
Combination of CS and IMS services
Cirtuit Switching
Packet Switching
Multimedia Telephony Service for IMS
Telephony Application Service
Charging Data Function
Charging Date Record
Charging Gateway Function
Online Charging System
Credit Control Request
Immediate Event Charging
Event Charging with Unit Reservation
Session Charging with Unit Reservation
Private Header Charging Function Address
Charging Collection Function
Event Charging Function
Private Header Charging Vector
IMS Charging Identifier
Inter Operator Identifier
access-network-charging-info
IP-Connectivity Access Network
Home Location Register