Where were you at the time of the phone call break-ups and interruptions? It can happen with any cellular service provider in certain places in buildings, parking lots, walmart stores for example, there will be dropped calls and break-ups during phone calls. Do you have another spare phone that you can put your SIM card in and see if the same problem exists. It may be a problem with the phone. Check the signal status on your phone when this happens. Also turn off your phone, remove SIM card and insert it again and reboot your phone. Hope this helps!
