Indicates a special arrangement has been negotiated between the host customer of a higher level service and the subsequent customer of the lower level service.
VALID ENTRIES:
1st Position
A = Shared network
B = Lease Back
C = Split Billing - All Elements
D = Split Billing
2nd through 4th Positions
Y = Indicates the requirement of split billing on the respective element.
NOTE 1: An entry in one or more of positions 2 through 4 is required when position 1 is "D".
NOTE 2: The following define element labels: EF = Entrance Facility DT = Direct Transport MUX = Multiplexing.
USAGE: This field is conditional.
NOTE 1: Required when the ACT field is "N", "C" or "T" and the ACNA field is different from the ACNA associated with the facility (CFA and/or SCFA) and the UNE and CC fields are not populated.
NOTE 2: Optional when the ACT field is "R" and the ACNA field is different from the ACNA associated with the facility (CFA and/or SCFA) and the UNE and CC fields are not populated.
NOTE 3: Otherwise prohibited.
DATA CHARACTERISTICS: 4 alpha characters
EXAMPLE: FBA EF DT MUX
D Y Y