#Person1#: Was that the telephone ringing?
#Person2#: I didn't hear anything.
#Person1#: I thought I heard it ring 2 or 3 times.
#Person2#: Sometimes when the windows are open, you can hear the neighbor's phone.
#Person1#: Well, I'm expecting an important phone call and I don't want to miss it.
#Person1# heard the telephone ringing while #Person1# didn't.
telephone is ringing