Hey vatsal - don't know if this is what your looking for or if it helps, but i was frustrated as well that when I clicked on the balloon that it just disappeared. But after playing around in the main window I saw that there is a drop down arrow on the right side of the box where you type a number to be dialed. When you click on it a list of all the numbers you dialed and the calls that came in show up. It doesn't differentiate between a missed and a received call but it at least shows the calls that came in so you can figure it out.
RWB