Who called from 9292328551

Received call, no one on the other line.  Called the number back, stated if I wanted to be put on a "no-call" list for this number to press 1.

Called no talking

Called my cell phone.  Left no message.  Called them back from business phone.  Message repeated "if you would like to be placed on a do not call list for the number that called you, please press 1 now."  Pressed 1.  "We apologize for any inconvenience.  Please allow 48 hrs for your requests to be processed."  Scam.  No company.

Did not pick up, got scared

I just received 4 missed calls from this number in just 1 minute, however my phone only vibrated twice really quick. Called back and it said " if you would like to be placed on a do not call list....." I just hung up ... what is this ?? really strange.