Your account may have a pay-per-use block on it. This will prevent you from using any features that are pay-per-use, including Call Return.
to your account and check if you have a pay-per-use block added to your account. You can
to get this block removed.
Phone not recognizing
The most common cause for the Call Return not working is that you have your phone set to pulse instead of tone. If touch tone is not activated, the system will not recognize your commands. To fix this:
On your phone, look for a switch that allows you to set your phone to
. The switch is typically located on the side of the phone, or sometimes on the bottom
Try using Call Return on another telephone in the home