708-669-0355 calls my cell phone regularly, never a message, disconnects when I answer, always busy when I call back, appears to be a scam. Folks there are lots of scams out there, with the technology we have, this could be more serious than we all think. DO NOT EVEN ANSWER, block (reject) these numbers on your smart phones.
708 669 0355 called my Cell number. When I answered the call it disconnected. I called it back and got a recorded message that "The survey I was called about has now finished". I doubt this was a survey call. I suspect it more likely to be a scammer confirming the validity/verification of phone numbers to sell to other scammers/telemarketers. Don't answer these calls, block them if you have the option.
I got a phone call from this number today around 9:30 am but I couldn't answer it. I returned the phone call 15 minutes later and the line was busy. I will block this number!