Believing my second handset (the first has a display malfunction) had gone dodgy, I bought a BT86
Since connecting it a couple of weeks ago, my rate of spam phone calls has gone from eight or nine a week to zero. That is without making any adjustments to the out of the box settings. (I have added contact phone numbers, that's all).
Frankly I didn't believe (from reviews) that it could be that good.
My broadband basic info/help site - www.robertos.me.uk.
Domains, site and mail hosting - Tsohost
Connection - AAISP Home::1 80/20. 200GB. Sync 74145/13476Kbps @ 600m. BQMs - IPv4