Identifies the VC status signaling protocol.
VALID ENTRIES:
1 = LMI
2 = Annex A
3 = Annex D
4 = Auto
5 = Other, e.g., RLMI version
6 = None
USAGE: This field is conditional.
NOTE 1: Required when the first position of the REQTYP field on the ASR Form is “X”, the NC field does not specify an Ethernet-based port and the ACT field on the ASR Form is “N”.
NOTE 2: Optional when the first position of the REQTYP field on the ASR Form is “X”, the NC field does not specify an Ethernet-based port and the ACT field on the ASR Form is “C”, “D”, “M”, “T” or “R”.
NOTE 3: Otherwise prohibited.
DATA CHARACTERISTICS: 1 numeric character
EXAMPLE: 3