this number call my house 6 times a day.I am disable and can move fast to get it.

This phone number calling too many time to us. I try to answer phone, some one come on phone after
8 minutes then I asked company name or their business name, she said hold on and hang up.

FMA Alliance - Debt Collectors

Someone called me from this number and when I called back they told me to enter the extension and If I didn't know it to press the * key. When I did nothing happen, just got some music for a few minutes and then i decided to hang up.

It is a collection agency.  I had an issue I was disputing with ATT and they bought out the bill.  They started calling me all day and everyday.  You can pick up and make them aware that you are aware of your right to ONLY receive things in writing.  If they are calling in error you can tell them that too.