In the specs, I see for resolution:
1080P(1920x1080)/1.3M(1280x960)/
720P(1280×720)/D1(704×576/704×480)/
VGA(640×480)/CIF(352×288/352×240)
I also see:
Main Stream: 1080P(1~50/60fps)
Sub Stream: D1(1~50/60fps)
Third Stream: 1080P(1~25/30fps)
So Main,Sub1, and Sub2. In camera browser config...