https://www.luckymobile.ca/support/phone/universal-network-level-call-blocking
Lucky Mobile proudly advertises this fancy new thingy. It's basically a passive security feature, kinda like a phone number version of an adblocker, it detects and blacklists spoofed (fake) numbers on your caller ID. So you won't be fooled by telemarketers and spammers and scammers and hackers and phreakers and private investigators anymore. Or at least not fooled as often, since UNCB doesn't promise 100% accuracy.
I assume that UNCB is dedicated hardware or software built into the phone network infrastructure.
And I assume that if Lucky has UNCB then Virgin and Bell have it, too, since they're all based on the Bell network. Even if they market it with different names.
And I speculate that if Bell has it then so might Telus since they have a network sharing agreement, for consumers they're functionally one national network with two flavours of billing. Although they each have regions in Canada where they're entirely dominant or entirely reliant on their counterpart, I wonder if Bell can't deliver their Bell-exclusive features on the non-Bell (Telus) portion of their advertised coverage zone - or if the Bell-exclusive feature is shared with Telus - or if it just ain't just exclusive at all because everybody has it. And I wonder if - if - Telus does have UNCB does Public Mobile also have it?
