Just got call 3/27/15 11:50am...they left message in my voicemail says "the national center for aging has issued the following community alert for senior citizens over 65 years of age only, due to the recent dramatic increase in injuries and deaths experienced by senior citizens from a fall a burglary, or any medical emergency, we're sending out free life saving medical alert pendants to all eligible senior citizens.  The costs of our medical alert system is already covered, and there is no shipping charge to you.  Press 1 now to verify your address & your delivery date.  In addition to your new medical alert system you will also be receiving $3,000,00 in grocery store certificates to help you save money every month on your household living expenses.  The entire alert system and $3,000.00 gift certificate is free of charge. Again press 1 now to verify your shipping address press 5 to notify your provider you have refused the shipment.

Senior citizens/everyone  please DO NOT ANSWER - SCAM!  Notice they don't say who they are, notice it first was a "pendant", then "system", first "certificates" then "certificate" and obviously you don't need to press 5 to tell YOUR agent you refuse shipment.
These are criminals.  Do not answer your phone, then block.  They call my house regularly and continue to change their phone number, so I just block as they come in.  Poor things must not be able to get REAL jobs so they rely on stealing from seniors.

called and asked for husband who has been dead nearly 30 years.

Number called & hung up.