Download Talking Caller ID
Talking Caller ID will tell you who is calling you right after your phone rings. Everything you need to have is a subscription to the caller ID service from any telephonic company and you will be all set. With this application you will avoid answering unwanted calls.
Talking Caller ID can identify any phone number that attempts to call you and it can work with two different lines at the same time. It translates text to speech for those with hearing impairments.
It's fully customizable and you can download it right now. You will see this is a tool worth to keep installed on your computer.