I missed a call from this number. Called it back 15 minutes later, got a recording saying the number was no longer in service or had been disconnected.
Guy with eastern accent called in asking for an employee saying that he was calling to transfer the call to his boss once he got our employee on the line. I told him I couldn't transfer the call not know what he was calling about. He then proceeded to call me back 10 more times and each time I ignored the call. This sounded like it was coming from a call center of some kind.