How to calculate parameters like Jitter/Latency/Packet Loss/MOS etc. of voice/video on mobile?

[Monu Tripathi]

I came across a mobile application which performs voice and video quality test to give a measure of the quality of voice/video experience over an IP connection. The test calculates the values of Jitter, Packet loss etc. for the remote stream.

I am curious to know how this is being done? What would it take to write such an Mobile application?

Help in any form is appreciated.

Thanks.

[Monu Tripathi]

[Cross Post]Question has also been asked here.