For symbian 6.1's phones, such as QD, 3650/7650, The RConnectionMoniter class is unavailable, how can I get gprs status on these phones?

I've tried CIntConnectionInitiator, but it has no method to check existing connections.

Then I turn to CWapConnectionManager, but I can't get necessary header files to compile my project, they are MConnection.h, InternetConnectionManager.h!

How can I get the GPRS status, I only want to know if it is connected!

Any suggestion is appreciated, thank you in advance!