"結束通話" "已設為靜音" "已取消靜音" "切換通話" "合併通話" "手機聽筒" "喇叭" "藍牙" "有線耳機" "保留通話" "恢復通話" "開啟視訊畫面" "關閉視訊畫面" "切換視訊畫面"