It tells you who is calling by actually announcing the name of the caller before you answer. This allows you to screen calls on your cellular phone, take just the calls you want, and send the others directly to your Last Stop Number, which could be voice mail, your assistant, an answering machine, service or pager. The result is that you can take calls, and return calls, at the most convenient time for you. Just one number. Now whether I'm at the office, in the car, at home, my customers can find me.
Nothing is more irritating than trying to return voice mail message in the car.
BellSouth One Number Service's voice mail one-button call return is great. I just dial my service number and return each of my calls with the press of a button. My faxes used to sit around the office until I got back. Now, with BellSouth One Number Service Fax Management Service, callers just dial my service number and press the fax button. I'm never in the office.