From Longman Dictionary of Contemporary Englishring up phrasal verb1 British EnglishTCT to telephone someone SYN call (somebody) upring somebody ↔ up I’ll ring the manager up tomorrow. I rang up and made an appointment.2 ring something ↔ upBB to press buttons on a cash register to record how much money is being put inside The cashier rang up £300 by mistake. → ring→ See Verb tableFrom Longman Business Dictionaryring up phrasal verb1[intransitive, transitive] ring somebody → up British English to telephone someoneI’ll ring the manager up tomorrow.2[transitive] ring something upCOMMERCE to press buttons on a cash register to record how much money is being put insideThe cashier rang up $300 by mistake. → ring→ See Verb table