That is correct. State PUCs are explicitly deprived of jurisdiction to regulate cellular rates by Section 221(b)(3) of the Communications Act, 47 USC 221(b)(3). This is true of both the carrier-consumer rates, such as the ones governed by various contracts that may charge different rates from contract to contract, and of the carrier-to-carrier rates, which are governed by roaming agreements between carriers.
While A/B switching is largely obsolete, due to the fact that carriers use a wide variety of digital standards and specialized software in the phone, the FCC still requires that analog cellular phones (only
850 MHz phones, not PCS, not iDEN) be manually switchable to the A or B block by the customer. There has never been a similar requirement for PCS band phones. The option to select serving system is typically buried very deep in the menu system. Using it will probably result in your being given greatly impaired service in many cases, as the phone would not be able to be switched to the PCS band or the other 850 MHz band automatically in accordance with the programmed list of host systems (also known as the preferred roaming list).Michael D. Sullivan Bethesda, MD (USA) (To reply, change example.invalid to com in the address.)