Could There be a Survivor of The Air France Flight Plane Crash in Brazil?

Two parents in New York City grieved the loss of their only son in the Air France plane that crashed in the Pacific Ocean on June 2009. But ever since then, they have been receiving  mysterious phone calls. When they pick up the phone they would talking but the person on the other end won’t talk. They didn’t think much of it at first. But then, they found out the phone calls came from Brazil, around the area where the plane crashed. Then they started receiving of these calls, and after it went on for a month, they found a curious thing. If they circle all the days the calls were made, and connect them, it forms the shape of the head of a plane. After that, they were sure their son was alive and it was him that was calling them. 

The calls went on for months, and more interesting things happened. Some of their relative in Shanghai, China was getting the same mysterious calls. That just strengthen the belief that their son is indeed alive. First the calls were only on their cellphone, but then their home phone and the phone of their store was called too. They also realized that the calls were made at the least busiest time of their work, and they say that only their son knows that information. They called Air France about their discovery, and the company told them that it might be just a scam from someone who found their son’s phone, but thats very unlikely. 

But if it was their son, why didn’t he talk, and why didn’t he try to come back home? Maybe he damaged his vocal cords during the crash? That is one of many mysteries to be solved.