This can provide access to carrier-specific features with the flexibility of an unlocked phone.
If a customer has been with a carrier for some time — sometimes for as little as 90 days — the carrier may even be willing to supply an unlock code for a locked phone, although they may charge a fee.
One way to get a phone without proprietary settings is to buy it new from a third party vendor in its original, unlocked state.
Third party services are also available to unlock a person's cell phone for a fee, usually by attaching it to a special piece of hardware specially designed for this purpose.
Certain models of cell phones can only be unlocked using the hardware method, which may also work for hardlocked phones.