What does it mean to be "on the top" in a conference call?

Question

i got put on hold and then my supervisor came back and said "ok, you're on the top", apparently meaning that someone else had joined (conference), which was the case. was this statement just another way of telling me that he had connected someone else on the line, or should i have gleaned something with regards to conference call etiquette?

Answer 1

At my work it would have meant top of the agenda and your part would be first.  I've never heard of an order of a conference call to be "on the top".

Now I've heard You're in the room to imply that you are now connected and on the speaker.  Perhaps he meant table top--though it still seems odd to me.  Whenever we connect we say Name, Company here.  So that everyone instantly knows you've joined in.