Just received a call. When I don't anticipate anyone calling my cell, I answer and mute it. I did that with this, and nothing. I called it back 3 times, busy once, and "call cannot be completed as dialed" twice. Block it!
When I picked up, some automated voice introduced itself as Heather and told me that they had sent me a final notice in the mail about my car warranty running out soon, and offered to let me speak to specialist. Had no idea what it was talking about and hung up.