Telus' flanker brand Koodo is introducing "Call Control" to make it easier to keep spam calls out. Telus already has this feature, and we'll talk about how you can access it later. What Call Control does is ask first-time callers (at least since you've enabled the feature) to enter a number between 0-9. If they enter the right number, the call will go through to you. If not, then they'll be notified that they've been prevented from reaching you.
This task is simple enough to let actual callers through while stopping robocalls from connecting to you. You can add up to 25 numbers to an "Authorized List" to avoid Koodo from screening these calls. And if there are numbers you don't want reaching you at all, you can add up to 25 numbers to your "Blocked List."
There is a possibility that this feature could screen out legitimate auto-dialled calls, like those notifications about package deliveries, so you have to remember if that's important to you. Perhaps you get calls from non-English speakers, too. It would be important to add them to your Authorized List.
Call Control will also remember your most recent incoming calls, and it won't screen these callers unless they haven't called in a long time.
If you want to enable the feature, log into your account and head to the Self Serve tab. Go to Mobile services and find Call Control. From there, click Manage.
As for Telus subscribers, you need to log into your My Telus account, head to the Call Control tab under the Plans & Devices section. You'll find instructions there on how to enable the feature.
Source: iPhone in Canada