I get calls from this number weekly. The phone rings, I answer...and nothing. I call back and ALWAYS GET A BUSY SIGNAL. I have decided the caller is a telemarketer, and have reported the number to The National Do Not Call List.
I answered and said hello and was answered with silence. I clicked mute on my phone and waited for the telemarketer to connect. Took their system about 3 second before they said hello twice and then hung up. Definitely a call center.