A carrier of record (or COR) for telecommunications, refers to the entity that provides public switched telephone network (PSTN) service for an E.164 number. The exact definition of who and what a COR is, is ultimately the responsibility of the relevant national regulatory authority.
A carrier of record (or COR) for telecommunications, refers to the entity that provides public switched telephone network (PSTN) service for an E.164 number. The exact definition of who and what a COR is, is ultimately the responsibility of the relevant national regulatory authority.
Source: Wikipedia "Carrier of record" · CC BY-SA 4.0
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