听力题 W: Good afternoon. This is Wilson Communications. Can I help you? M: Hi, I am calling about the cellphone I bought from your company two months ago. I am afraid there is some problem with it. W: What happened to your cellphone? M: It seems that sometimes I can''t gel: incoming and outgoing calls and it always gives me a busy signal. Do you know what the problem could be? W: Could you tell me how long this has been happening? M: A couple of days. At the beginning I thought it could be the handset''s problem but then I realized it was probably the transmission signal. W: Please give me your number and I will check whether there is any problem on the line. M: 978924. W: Thank you. Please hold onto the line and I will get back to you in a minute. M: Sure. W: Sorry to keep you waiting, sir. I have checked your number and everything is fine. It could be due to our line upgrading and sometimes it could affect certain mobile numbers. M: How long do I have to wait before the signal returns to normal? W: Well, another couple of days. And if the problem still exists after two days, please give us a call and we will look into it and solve it. M: OK. Thank you.