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Abbreviations

ACC
Access Point Connection Control
AP
Access Point
APE
Access Point Emergency
BRI
Basic Rate Interface (ISDN S0)
CGW
Common Gateway, e.g. HG 3500
CLA
Customer License Agent
CLM
Customer License Manager
CO
Central Office (Deutsche Telekom)
DLS
Deployment and License Server
DMC
Direct Media Connection (VoIP)
E2E
End-to-End
ERH
Endpoint Registration Handler
HFA
HiPath Feature Access
HSR
HiPath Signaling Router
HW
Hardware
ICMP
Internet Control Message Protocol
IMP
IPDA Media Proxy
IPDA
IP Distributed Architecture
ISDN
Integrated Services Digital Network
JRE
Java Runtime Environment
LS
Local Survivability
LW
Loadware
MEK
Master Encryption Key
MXGW
Mediatrix Gateway
MTU
Maximum Transmission Unit
NAT
Network Address Translation
PBX
Private Branch Exchange
PEP
Proprietary Encryption Protocol (for IPDA signaling)
PSTN
Public Switching TDM Network
PXE
Preboot eXecution Environment
QDC
Quality of Service Data Collection
QoS
Quality of Service
SBC
Session Border Controller
SIP
Session Initiation Protocol
SPE
Signaling and Payload Encryption
SRSR
Small Remote Side Redundancy
SRTP
Secure Real Time Protocol
SSA
Session Initiation Protocol
TLS
Transport Layer Security
VoIP
Voice over IP
WBM
Web-Based Management