If I remember rightly, the info you are seeking is locked away in the more inaccessible cellular engine area of the baseband. I would imagine probably at this stage only Nokia know how to retrieve the numbers (via I guess an application like Netmon in the Symbian world). The only other way would be via test points on the board.

Some interesting info is available in the L3 & 4 service manual, but probably you would require a spectrum analyzer and oscilloscope at this level.