一、找准对方电话号码。对记不清或有疑问的要查清后再挂电话。对常用电话号码经常修正,保持随时准确,防止挂错电话,因为您只要挂通并和对方讲话,不论您挂的是否准确都要收费。二、正确操作及时询问。电话号码准确,操作不当也容易挂错电话,所以挂电话时要集中看准电话机键 First, identify each other’s phone number. To remember or have questions to find out and then hang up. The frequently used telephone numbers are often amended to keep accurate at any time to prevent the wrong number from hanging up because you just hang up and talk to each other, regardless of whether you are accurate or not. Second, correct operation promptly asked. Phone number is accurate, easy to hang up the wrong call, so when you hang up the phone to focus on the phone keys