Hello, I’m Nathan, and I’ll be assisting you today. My livelihood depends on your positive feedback, so your satisfaction is my highest priority.
Sorry to hear you’re having trouble.
If all the handsets are saying this, it means they aren't getting a connection to the main base station.
The panasonic main base unit needs to be plugged into a power outlet, and have a phone cord from it to the sprint connect box.
Do you see any lights on the main base, or does a handset charge when placed on it?
Do you need more help with this?