Who called from 6012998753

This is an unlisted number

This number called me and when I call it back they tell me it's not in service.

This is a recording about a home security system and at the end their pitch they ask you to press 1 if interested and 2 to be placed on their do not call list.  They use different phone numbers each time, but it is the same recording.  Pressing 2 does not get you off their do not call list and if you hold to talk to someone they hang up as soon as they hear that you do not want to receive their calls.

number called and called back was busy

Called but left no message