Who can give me a little joke?

At a meeting today, a strange man sat over and took out his mobile phone and asked me, what mode do you think vibration is? I'm talking about the meeting mode. He said, I'll switch to conference mode. Please dial it for me to see if there is any vibration. Then he reported his number, and when I called, his cell phone rang with joy. Before I knew it, he quickly turned to my number: Hello, what's your name? What's your name?