Draft determination to resolve a dispute between BT and various communications providers about INCA/CLI

[Draft] Determination under sections 188 and 190 of the Communications Act 2003 for resolving a dispute between British Telecommunications plc (“BT”) and five other communications providers (“CPs”) concerning Inter-Network Call Accounting ("INCA") billing using Calling Line Identification (" CLI") (referred to in this document as "INCA/ CLI") for NTS calls.