dial tone編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看dial tonedial tone — 名詞名詞1. a continuous sound indicating that a phone line is ready for dialing1.名詞釋義撥號音a continuous sound indicating that a phone line is ready for dialing例句I picked up the phone and heard the dial tone.