Hi, I applied to the EE PhD program at columbia. I contacted one of the professors there and after he told me that there would be no PhD position, I insisted to be considered as a MS student, This is his response:
"I very strongly advise against attending our program as an MS student if you are interested in a Ph.D. at our institution; the probability of transfer from the MS to the Ph.D. track is very low, and you are very likely to be disappointed if that is your goal. There are not that many Ph.D. slots, and our MS program is a professional degree, and not intended to be a recruiting pool for the Ph.D. program. The MS program is not research oriented (and quite expensive), so it really only makes sense for students that are planning to work immediately afterwards."
I hope it helps