Acronyms

The following table provides information about the acronyms and the terminology used in the document:

Table - Acronyms

Acronym	Description
AGW	Application Gateway
AS	Application Server
BSN	Backward Sequence Numbers
DSM	Database Service Module
ERM	Error Rate Monitor
FAK	Feature Access Key
FIB	Forward Indicator Bits
GLS	Generic Loader Service
GPL	Generic Program Load
GWS	Gateway Screening
MDAL	Maintenance Disk and Alarm Card
MRN	Message Reference Number
PDS	Persistent Device States
PDU	Protocol Data Unit
SIGTRAN	Signaling Transport
SCM	System Configuration Manager
TCP/IP	Transmission Control Protocol/Internet Protocol
UAL	User Application Layer
UAM	Unsolicited Alarm Message
UIM	Unsolicited Information Message