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DEFINITY ECS Release 8.2
Administrator’s Guide
555-233-506
Issue 1
April 2000
Glossary and abbreviations
1635
FRL
Facilities Restriction Level
FX
Foreign exchange
G
G3-MA
Generic 3 Management Applications
G3-MT
Generic 3 Management Terminal
G3r
Generic 3, RISC (Reduced Instruction Set Computer)
generalized route selection (GRS)
An enhancement to Automatic Alternate Routing/Automatic Route Selection (AAR/ARS) that performs rout-
ing based on call attributes, such as Bearer Capability Classes (BCCs), in addition to the address and facilities
restriction level (FRL), thus facilitating a Uniform Dial Plan (UDP) that is independent of the type of call
being placed.
glare
The simultaneous seizure of a 2-way trunk by two communications systems, resulting in a standoff.
GM
Group manager
GPTR
General-purpose tone receiver
grade of service
The number of call attempts that fail to receive service immediately. Grade of service is also expressed as the
quantity of all calls that are blocked or delayed.
ground-start trunk
A trunk on which, for outgoing calls, the system transmits a request for services to a distant switching system
by grounding the trunk ring lead. To receive the digits of the called number, that system grounds the trunk tip
lead. When the system detects this ground, the digits are sent.
GRS
Generalized Route Selection
H
H0
An ISDN information transfer rate for 384-kbps data defined by CCITT and ANSI standards.
H11
An ISDN information transfer rate for 1536-kbps data defined by CCITT and ANSI standards.