Caller ID displays the phone number of the person calling before you answer the telephone. Caller ID also stores the phone number, as well as the date and time, of each incoming call so you can review this log later. Caller ID requires the purchase of compatible equipment, which is available through many retailers.
How To Use Caller ID:
When you receive a call, wait until the telephone completes the first ring. The call is identified on your Caller ID equipment between the first and second rings.
Since Caller ID works automatically after you have subscribed to it, you do not need to press any codes to activate or deactivate the service.
Follow the instructions provided by the equipment manufacturer for setting up and using your display unit or telephone.
The number of calls stored in a Caller ID log will depend on the equipment you obtain.