the voicemail I reached for this number (03) 9112 7965 said it was Synergy

They keep calling without leaving a message. Should have their number blocked. No idea who it is because they won't leave a message

Number should be barred - the number is not connected when you call it back

Been called multiple times in the last few days by this number. If you try to call back, it states the mobile number isn’t in use.

Annoying a nd continually calling not l waving a message have now blocked

I did not recognise number so did not answer and they didn't leave a message, so assumed it’s not important. I checked here and found great information, thank you everybody and now I know who called me, and will now block

no message=blocked number

Been called at least 4 times by this number. Nuisance!