Then don't sign up for phone service, it's not an entitlement.
It's an "entitlement" if I pay for it! Just like I'd have the right to turn away a door-to-door salesperson on MY front steps. Telemarketing is harassment, especially when it's high volume. The telemarketers have no right to bring their voice into my home.
You are entitled to what you pay for which is phone service that allows anyone to call you. If you want a better service, then you need to pay for it. Asking the government for it makes it an entitlement.