Good to know- Unwanted calls can be a pain, but with the Call Blocker function you can block unknown numbers and create your own blacklist- Use the 100-entry phonebook to save your most important numbers - no need to dial them manually- Its Caller ID feature lets you save up to 20 contacts, so you'll see who's calling you on the screen- The backlit keypad and LCD screen make it easy to use your phone even in the dark__________Please note: You must subscribe to a Caller Display service from your network provider for the nuisance call block and caller display features to work. Charges may apply.