this is coming in like a fax call.squeals and screeches.

Fax call, repeated.

So, just like 312-637-3124, 312-637-3123 is another fax machine with redials endlessly.  I received a call from the first number at 12;20 which was followed up by the 3123 number at 12:28 p.m.  I left the phone unplugged for a couple of hours and have just recently plugged it back in.  We'll see what happens.