ICM is an internationally patented call waiting service suited to the domestic market.
因特网呼叫管理(ICM)是一项获得国际专利的、适合国内市场需求的呼叫等待服务。
See also: call waiting
👨🏻🏫 Mr. Ng 柯林斯詞典 📚 – collins.mister5️⃣.net切換為繁體中文