You will have to check 1 you are going to call and the telephone number, think about the 2 of the call, what you 3 from the call and what you may need to 4 or need to 5 . If the call is an 6 one, you had better check the 7 before dialing, as there is a time difference for different time zones. If you are making the call in a 8 language, it is suggested that you 9 all the 10 and prioritize them. Below is a preparation checklist for your reference.