I got a call from this number while at school. I didn't answer so they left a voicemail. I clicked on the voicemail and it skipped the "You have one unheard message" and went straight to the message. The voicemail message was two minutes long of what sounded like an encrypted message. Very loud. It did not sound like a siren. It sounded like a computer screaming or something. Than it hung up my voicemail which it should not be able to do... Tried to call back and it just made the busy noise... It scared me.