call up+verb[UK: kɔːl ʌp] [US: ˈkɒl ʌp]
call-over+noun[UK: ˈkɔːl əʊ.və(r)] [US: ˈkɔːrl oʊ.vər]
give a buzz+verb
ring [rang, rung, ringing, rings]+verb[UK: rɪŋ] [US: ˈrɪŋ]
ring back+verb
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