For decades there has been endless policy wrangling over whether “unlocking your phone” (removing restrictions allowing you to take the device with you to another carrier) should be allowed. Giant carriers have generally supported onerous phone locks because it hampers competition by making it harder to switch providers. Consumer rights groups and the public broadly support unlocked devices.
Of course they did, everyone had cellphones in 1934 already.
Congress wasn’t stupid and made sure to mention unlocking cellphones 90 years ago.