asking to verify information for millitary

If I answer, the caller will not say anything. If I do not answer, the caller will not leave a voicemail message. I am keep a record of these calls because something is not quite right about this

will not tell me where they are calling from or what it is regarding.. just leaving voice mail asking me to call..

additional note I have received three other calls of a phish-y nature one was definitely severely reported.

This very indian sounding man from this number indicated he was calling from a law firm (name that I couldn't understand) and that they were calling to collect on the debt from an advance that I didn't pay. Well, first of all, he had my name. Second of all, I never took an advance. I indicated that I hadn't and oculd he please give the details as I was curious as to how this could possibly be. I also indicated that I was affiliated with the court system and could easily check what he was talking about. I wanted the name again, the phone number, address and all the details in writing provided to me. He began to fumble and spitter and sputter. I didn't let up. He ended the call by saying well ok then, you didn't!. It is a scam and absolutely illegal.

So tired of this man calling me. He calls sometimes 20 times a day and is so rude. Threatening me, my family and many other things.