I can guess this.
Lets say you got a " virus " on your computer and said to call this number 111-111-111-1111
" Hello sir, how may we help you today " This can be a robot, and can show maybe that it isnt a scam and can be seen as a message bot so they can record, and send you to the correct line for your issue.
You say " I got this virus on my computer and it said This computer has a virus known as a " insert virus name " and to call this number.
