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Jyutping but6 tung1
Pinyin bō tōng

Definitions (粵典–words.hk)
  1. 動詞
    令到​電話​兩​邊​嘅​人​都​可以​同對方​通話
    (also 接通 Zip3Tung1) to dial a number and be connected
    !!!written
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #238

撥通 [拨-]

Jyutping
Pinyin bō tōng

Definitions (CC-CEDICT)
  1. to get through to sb on the phone