Caller id just says incoming call
You have given no make, model or network and country details, so my answer can only generalise.
On mobile networks usually you'll only get that message if the caller has withheld their number. On landline networks you often have to enable caller ID via the phone company; some supply the data free, others make a small monthly charge which they'll usually waive if you seriously threaten to switch to another supplier.
If you're on a mobile network and never receive caller ID data and if your phone is not a super-basic model which is unable to display such details, then you need to check with your network operator as it could be a fault with their network or even with your local cell mast.
Aug 02, 2011 |