Pretty sure it's a wine brokerage in Surry Hills.

See comment on (02) 8507 2605, it's a company called WineIQ

Very weird, call came through and I let it go to voicemail, I called it back and it gave me an IVR, I selected "0" for operator and it rang out to voicemail and then said "This voicemailbox is full". I returned to the "directory" and was told to enter two digits, I entered "56" hoping to hit a "John". Was then told "transferring you to extension 666" (sus!) and then got a voicemailbox for "Craig Johnston". Can't find anything about this person online that would match...