Thank you for the reply. I tried to find my original ticket to reply there, but could not.
I’ve heard of these different measures, both promised and in-place. But they don’t address my complaint/goal. I don’t want to have to look at my phone each time to see if the caller’s id is flagged as spam or suspicious, etc. (I already have that). I don’t want my phone to ring when it’s not someone on my contacts and/or whitelist calling, and then I have to pick it up and accept/decline or let it just ring on. But I do want the option to have contacts/whitelist ring through. My closest option currently is to put the phone on Do Not Disturb, accept Contacts, but it doesn’t ring even for Contacts. It does vibrate, but unless the phone is next to me, I’ve missed the call until I look for the voicemail-waiting or ‘missed call’ flags. Or, I can let the phone ring, and then look at it and silence it if it appears to be spam. My Sentry Call Blocker keeps my landline phone from ringing from non-whitelist callers. But they can still leave a message. That is a much more complete solution. The logic-tree isn’t that complicated.
Now if the carriers can differentiate between legitimate and spoofed caller IDs, and either simply block them within the cellular messaging system, or optionally let us block them without having to look at the phone to see a ‘spam probable’ message, like we can block “Private Caller” calls, that would be a major improvement.
An alternative would be that the Do Not Disturb setting have an option to let call from Contacts (only) activate the ringer, not only vibrate, and non-contacts would be passed without ring or vibration to the Voicemail service. That would meet my needs. I haven’t found a DND app that will do that (optionally enable the ringer for Contacts)- they all turn off the ringer and enable only the vibration. If you know of one that will allow the ringer for calls from Contact, please point it out.