4194811054 said 'GLM' on the Caller ID.

Received a call from 419-481-1054 on June 28th at 5:29 pm.  Caller ID identified the caller as GLM.  A Google search of GLM identifies this company as Great Lakes Marketing of Toledo, Ohio.  I can only assume they were trying to sell us something, as I did not answer the phone.

The calls from 419-481-1054 are for a market research firm.  I received a letter from a company I do business with telling me they wanted my opinion on new products and services.  GLM has an A+ rating from the BBB.

I have gotten 3 or 4 calls from this number in the past few days.  I answered twice and both times there was silence on the other end.  I'm surprised GLM has an A+ BBB rating, if this really is GLM.

I received a phone call from 419.481.1054, but when answering machine answered call they hung up, this is very anoring..I am on the do not call list, so why am I getting these calls?