Billed Number Screening messages may be used for determining the validity of billing calls to a telephone number on collect and third-party calls, and any conditions related to the acceptance of charges by the billed party. Information on such conditions would be stored within a Billed Number Screening system, most likely within a database.
This Recommendation describes information used within the Billed Number Screening process at a conceptual level and makes no attempt to specify any equipment, facilities and data transmission techniques. In addition, the use of systems and networks also involve service agreements between ROAs; these agreements are beyond the scope of this Recommendation. It should be noted that future technological developments may allow operator service functions to be automated (e.g. using voice recognition); this Recommendation is not reliant on, nor does it preclude, that automation.