Got the same call twice and they never left a message. I'm sure it has to be someone asking for money. When I get a number I do not know I just let the answering machine take care of it.
Recording says "did you know you qualify to lower your mortgage interest". An unwanted caller with a robocall machine hoping to sucker someone into yet more information for them to sell. The truth is that if I want a lower mortgage interest rate I certainly won't depend on unknown callers for this service. My Bank, probably.
Caller ID says "client retention". It is now blocked by our blocker.