ICM is an internationally patented call waiting service suited to the domestic market.因特網(wǎng)呼叫管理（ICM）是一項(xiàng)獲得國(guó)際專利的、適合國(guó)內(nèi)市場(chǎng)需求的呼叫等待服務(wù)。Do you have call waiting?你有插撥服務(wù) 嗎 ?Was that call waiting or did a vein pop?那是再給次機(jī)會(huì)還是一次了結(jié)了?...