SCCT - Service Category

Identifies the class of cell relay (ATM) service requested.

VALID ENTRIES:

A = Available Bit Rate (ABR)

B = Constant Bit Rate (CBR)

C = Non Real-time Variable Bit Rate (NRTVBR)

D = Real-time Variable Bit Rate (RTVBR)

E = Unspecified Bit Rate

USAGE: This field is conditional.

NOTE 1: Required when the BSC field on the EUSA or Transport Form is “C” and the VCACT field is “N”.

NOTE 2: Required when the VST field is “B” and the VCACT field is “N”.

NOTE 3: Prohibited when the BSC field on the EUSA or Transport Form is “F”.

NOTE 4: Prohibited when the VST field is “A” or “C”.

NOTE 5: Prohibited when the VCACT field is “C”.

NOTE 6: Otherwise optional.

DATA CHARACTERISTICS: 1 alpha character

EXAMPLE: A