Heh that's fun.
Funny phone stories? I have 2.
First a guy from my classed called me for some assignment. I took the portable phone to my room. The guy was gonna call a frien dof me. After we hung up, I hear the phone ring again. Somehow I expected it was my father who wanted the phone back, so I tried to be funny and picked up with "WHAT IS IT?"
"...... euh..... I don't have his number!" Yes, it was the guy again and I scared him.
When my brother and a friend were home alone, they had to do a crapload of chores before they could play on the N64. When they were finally done after an hour, the phone rang. My brother angrily picked up with "YES?!" Was some sweet lady who warned us that our goat who escaped.
Next time I get one of those telephone interviews on me, I'll tell them I'll give them my father. Then I'll pretend to be my father and use a female voice. I wanna find out how long they can hold their laugh.

After that I'll give my mother a male voice.