It is important that you are able to get good performance out of your device. What make and model of device are you using? When were you first unable to make and receive calls? Has your phone been doing this the entire time you have had it?
PeterP_VZW Follow us on TWITTER @VZWSupport If my response answered your question please click the Correct Answer button under my response. This ensures others can benefit from our conversation. Thanks in advance for your help with this!