Calls repeatly - leaves no message

It is NOT a solicitation call and it is not a spam/spoof call.  Not sure why you get them but I speak to MIT Lincoln Labs all the time as they are one of my end users who uses our fire detection systems on their campuses (I am located in Northern NJ).  I know you must all be leery and cautious about unknown numbers and yes I would venture to say most of them are spoof/spam/phishing calls, but mind you MIT Lincoln Labs is NOT.

Any call from MIT Lincoln Labs will show up as 781-981-5500. Could be someone you know who can't use their cellphone trying to get ahold of you. Odds are it isn't a solicitation call.

I see I reported this call last February and this time the ID comes up as MIT Lincoln Labs and of course there's no message.  My phone number is just a voice mail service so I have no idea what the call is about nor do I care.  I have found that shorten the "ring" to my number has dimished a lot of the unsolicated calls.  Let them deal with an answering service as they are just wasting their time calling my number as they will never get anyone to answer a phone that doesn't exit.

I too just got a call on my cell from 781-981-5500. I didn't answer, which is what I usually do if I don't recognize the caller or number.  Caller didn't leave a voice-mail, which is a further sign that it's not someone with a real reason to reach me.  Number is registered to MIT Lincoln Labs in Lexington, MA.  Someone is spoofing.

I just got a e-mail with the same # interested in my rims? is this a scam?

No message on voice mail.  Caller will not identify him/herself.