Called and left a voicemail. Claims his name is Sean, he's with a company called Trinity, and he's bringing a "massive Bluetooth network" to your area. Never calls out your name, but says you were referred to the company (but not by whom). Directs you to a website, which is a pretty obvious scam or MLM company.
Same as others are reporting, company called trinity. Got a 5 minute long voicemail saying my number was passed along as a referral and to go to their website etc..