We've added sleep of 2 seconds after starting the rtpproxy, so that extend time before we issue "get stats" command by 2 seconds as well, so that it does not come too early.
We've added sleep of 2 seconds after starting the rtpproxy, so that
extend time before we issue "get stats" command by 2 seconds as well,
so that it does not come too early.

hongbinz/voiptests,hongbinz/voiptests,sippy/voiptests,sippy/voiptests