Look at the Special Number (SPN) of "011" in LD 90. Then print out the RLB you see listed there as the RLI in LD 86. I believe the FRL value links to the NCOS levels in another table somewhere, but the table might not equate properly, i.e., and FRL of 7 might not equal an NCOS of 7; (I would be interested in learning how the NCOS is established for each RLB as well.) Users would dial "9-011-(country code)-etc" to connect internationally. Of course, the carrier would have to allow the dial range as well as the PBX.