Similar to Nora. The caller listens for a few minutes and then stops. If you call back, a voice activated system tells you to leave a message. This is to 'confirm whether your number is a Private number or an office or a Fax or a govt agency. This is spammer's cold calling for lead. Beware!
It's the hartford courant! They kept calling me and I finally got someone on the line. They said I didn't pay for a subscription. I never signed up! The women was demanding my credit card or debit card number! I hung up!!0