Operator . Can I help you ?   I'd like to make a person-to-person call to Beijing , China . The number is 2135367 8 , and I want to speak to Mr . Zhang .   To Mr . Zhang in at 2135-3678 ?   Yes , that's right .   May I have your name and telephone number ?   My name is Luo Gang , and the phone number is 513-3284 .   Mr . Luo , will you hold the line , please - - - Mr . Luo , there is no Zhang at that number . Will you check the number again , please ?   What the number I gave you , operator ?   It's 2135-3678 .   Oh , I'm sorry . should have been 2135-3668 , not 3678 . I've given you a wrong number .   Are you sure this time ?   Yes .   OK . Let me try again .   Thank you . 