Ears

Tower B, Infinite, fifth floor, production area.

"Hello? Keith, are you still on the line?" an agent asked as he tried to listen carefully in case he would miss a response. "Hello? Keith?" he called. But, there is still no response from the other line. "Since I wasn't any response, I am authorized to release this call." He spoke. "Hello, Keith?" he tried calling again, but like earlier, there is still no response from the other line. 

Earlier, he asked for the other's best callback number in case they would get disconnected. He didn't know that he might have to use that telephone number since he didn't expect that just as he was troubleshooting the other's affected device remotely from his end, Keith would suddenly get disconnected. 

However, just as he was about to repeat his spiel to release the call, he finally heard a sound.