Identifies the duration, identifying USOC , contract date or contract identification number of any variable term agreement that may be offered by a provider for a virtual connection.
USAGE: This field is conditional.
NOTE 1: Optional when NVC field on the EUSA or Transport Form is greater than one (1) and the VCVTA field on the ASR Form is blank, otherwise prohibited.
DATA CHARACTERISTICS: 17 alpha/numeric characters
EXAMPLE: 3 N C O R