Just wondering something. If you get a dropped call, cant it be the fault of the service provider of the cell phone you are calling?
You can usually tell.
If the other person disappears and you keep saying "hello?" for 6 seconds before your phone hangs itself up...well then that was their phone's fault.
But if you're in the middle of a sentence and your phone goes "Beoop!" in your ear...well then that was your phone's fault.