A:AnswerThat would be through your phone company, if they provide that service, or by signing up for something like NOMOROBO. I would suggest you call your phone company and ask them if/how you can block numbers and how many you can block.
A:AnswerThe call screening function can be turned on or off. If off, you won't hear the caller's message. That's what the directions said, haven't tried it.
A:AnswerNo, the call waiting feature assists you to place a call on hold and answer the new call. Please note that this feature requires a subscription from your telephone service provider.
A:AnswerIt's really easy. Just remove the handset from your current phone and place the new handset in the cradle. It will automatically make the connection and let you know when it is complete.