Dead air
Limited research online says it is a landline

Automated voice message:  called to deliver alarm alert system to senior citizens over 65 yrs old.  says it's free... wanted to confirm mailing address...said would contact my health care provider.  no one in my home is 65+ years old
said government is paying for this system and no cost to consumers

UNKNOWN NAME, Caller didn't leave a message probably won't answer either

Automated message saying alarm system for senior citizens,  free shipping and free insurance card.  Wants you to press one to confirm address.

First  said they were an American Securities  and on the return call ADT....My phone ID marked it as spam and rejected the call. I  have not heard anything more.