They purposely call and hang up so you will call back to see who it is. I believe they are retrieving info from your phone. I am very sure this is but General Electric. Do not return phone calls to any unknown numbers who call and hang up!
Received (but missed) two calls at my work phone from this number yesterday and one call today (February 4). Earlier, I called the number and got a message to opt out of future calls. Now this means they will continue to call me at work about installing a wireless home alarm system for free.
Caller kept going in & out of reception. When the man finally came on the phone he sounded very uneducated (as in, not pronouncing his words properly). He kept saying he was from Alabama... I'm not really sure why he kept saying this! I asked him why he called and who he was and he said again,
"it don't matter, I from Alabama!!"
I could care less where you are from DO NOT CALL ME AGAIN!!
He also denied ever calling ME! Ggrrrr!!!
I hung up!!