Identifies the routing index to be used by the provider’s switching equipment to forward/port the provider’s telephone number to the customer’s non-RCF trunk group.
NOTE 1: The route index ID is used on the LSR for the customer to direct INP traffic .
USAGE: This field is conditional.
NOTE 1: Required when the TRFTYP field on the Trunking Form is "RI" or “PN”, otherwise prohibited.
DATA CHARACTERISTICS: 6 alpha/numeric characters
EXAMPLE: 4 3 2 1 9 3