RTCP Question

I need to test VoIP application in a wireless network. I have a program that
reads a sound file and creates a RTP session to send it to other computer. In
order to measure the application performace I need to take the following
metrics during the RTP session:
- Packet loses.
- End to end delay
- Jitter
The questions are: RTCP data and statistics can help me with all this metrics?
Does RTPC have a clock synchronization mechanism?

Thank you
Hernán.