A Sign?

It was the 16th Sept. Two days back. I was really stressed up with the test next day and a lot of assignments to do...
Towards the night was really going to crack! My brain was going to explode! Brain over over load!
I was going to rip off from of my hair.... and the same time wishing that someone will help me out or give me a sign.
At that very moment, my phone rang! (11.50pm) I went to my phone and saw the number +11111112572.
I was surprise and wandering who was that. Knowing the phone scams out there, I did not pick up the phone. I just pressed the engage button.
Then within a few seconds later, the phone rang again. This time the phone showed an unknown number. I decided to pick it up and find out who it is.
I picked up and said hello. (with a nice tone). Then, I heard a faint sound in the background. It sounded like a hello or something. But I could not really make it out.
After that faint sound the phone line got cut. It then got me thinking about the phone call and it really calmed me.
I felt better and relaxed!
Till now I am wandering who was that on the other side. Someone trying to reach out to me???
A phone call that really made me thinking and saved my day!
Thank you!