#Ringless-voicemails robocalls received.
HOWEVER: No date time stamp, nor record of recent inbound call nor number associated with the #robocall voicemail is logged.
FWIW:
*Cleared VM cache.
"Do Not Disturb" is used but these ringless voicemail #robocalls are received during allowable hours
*Verizon Advanced Visual Voicemail in use.
*Normal voicemails from callers properly handled and "recent" calls are logged as expected with number and date time stamp.
This appears to be spammers' way to not actually call but come in thru the back door and slam voicemails with #robocalls.
Any suggestions for Verizon consumer action or settings to keep ringless voicemail spammers from flooding one's voicemail inbox with #robocalls????
TIA