Identifies the traffic class of the trunk group.
NOTE 1: Traffic class indicates engineering parameters.
VALID ENTRIES:
A = Primary High Usage Direct End Office
B = Primary High Usage Tandem
C = Intermediate High Usage Direct End Office
D = Intermediate High Usage Tandem
E = Direct Final End Office
F = Direct Final Tandem
G = Alternate Final Tandem
H = Alternate Final End Office
NOTE 1: Valid entries of “A”, “B”, “C” or “D” requires an entry in the ALT REF and FACT (ALT REF) fields.
USAGE: This field is conditional.
NOTE 1: Required when the TG ACT field is “N”, “C”, “D”, “R”, “F” or “K”.
NOTE 2: Optional when the TG ACT field is “M”.
NOTE 3: Otherwise prohibited.
DATA CHARACTERISTICS: 1 alpha character
EXAMPLE: TGTYP
A
B
G