S60 SDK and RTSP

Hello everyone! I'm trying to write a streaming application with java and 
the s60 3rd edition sdk.
The documentation says clearly that rtsp is supported and that it is 
possible to create a player from an rtsp locator but if i try something 
like:

  Manager.createPlayer("rtsp://someserver:554/somefile.mp4");

I get:
Realize error: -7002

And the same with other file types.

Ii query the manager with  Manager.getSupportedProtocols(null); I don't get 
RTSP but only http,https,file,device.
What's the problem?I also noticed that other midlets that run fine on the 
WTK emulator don't work on the S60 one!!For example a midlet that use socket 
to connecto to a server can't work on the S60 emulator!Anyone can help me??
Thank you!