Set up PhoneShield.

1. Install the PhoneShield app and sign in.Calls that pass the front desk ring right in the app, like any phone call. That is step 2.
2. Tell the iPhone to forward its calls to PhoneShield.Settings, search Forwarding, paste your PhoneShield number. That is step 3.

That is it. Step 1 is just the plan, which gives you your PhoneShield number.