This is a SCAM phone number. It rang my land line in Bowral NSW on Thursday 18/04/2024 at 3.57pm. It disconnected as soon as I answered.
I am aware that these numbers then try to get you to ring them back. I rang it anyway, just to find out who it was so I could report it.
A female Asian accented voice answered to say that no agents are available, and they might ring back. The message said it was from a Charity survey service.

Scam number