Hang up the phone!

When dialing a customer back on his land line, a tiny frail voice is heard.

"Hellooooo?"

Then my customer shouts in a deep, hoarse voice, at the top of his lungs:
"HANG UP THE PHONE! HANG UP THE PHONE! HANG UP THE PHONE!"

again, in a tinier voice:

"Helloooooo?"

"HANG UP THE PHONE! MOM HANG UP THE PHONE!"