Just heard a loud beeping sound on the phone

Scammer

Appears to be a scammer. Had a fraud suspected on my bank accounts, who advised that sophisticated scammers are use all sort of techniques.

This number called and it was noted as being a robot all, spam.

Called. Didn't answer. Left no message.

Had a missed call on my dead husband’s phone. Only message left was heavy breathing. Weird.

Phone call from this number without leaving a message - suspected ghosting number as ringing it back - recorded message that number was incorrect or incomplete. Scammer suspected

Scam call. Recorded message threatening to disconnect me from NBN