I have nokia 6600 and problem. Dont work missed calls, received calls, dialled calls, in options/settings Log duration is 10 days, and Show call duration is Yes.
I read help, manual etc and nothing. When I have missed call, in Log/Missed calls I have missed call, when I open missed call then is no missed calls.
No call registar nokia 6600
u just start log app and delete all comunication log . may be solved your problem
delete all the log and than restart the phone...
it happens wih me also many times but doing this solves the prob.