Anyone knows how to stop blocked numbers from leaving voice messages

[son0707]

01992308578 burlar alarm is all what I'm getting. It's be going on for a year or so randomly. 

[nowdeleted]

I assume you have done a Google search of the number??
Have you enabled the caller I'd and spam protection in your call settings

[Robin999]

Can't do it on Android. However, there are 3rd party apps available from Play Store that claim to do this. Can't vouch for any of them as never used.

[son0707]

Yes did all that but they just keep leaving that dreadful message burglar alarm over and over. 9 times in 2 days

[OldMan2]

From A53 Manual:  "By adding a caller to your Block list, future calls from this number are sent directly to your voicemail, and messages are not received."

I have been unable to find the ability to truly "block" a caller (hang up upon receipt) or get my telcom (Consumer Cellular) to recognize the block (which is actually only on my phone and NOT on their system since we are ysing internal Samsung phone features.