Whenever my phone is on I have no volume. I can not hear other people when they call me, but they can hear me. What should...

The first thing I would try is to plug the phone into the charger and try to turn the phone on. If the phone still does not come on there might be a problem with the charger or port. If the charger and port are not broken in some way then the battery for the phone is drained and needs to be replaced.