A:AnswerThere is a large number that appears on you phone. When you access the play messages, the system tells you vocally how many new and old messages you have.
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.