1e41f4b71Sopenharmony_ci# Telephony Subsystem Changelog 2e41f4b71Sopenharmony_ci 3e41f4b71Sopenharmony_ci 4e41f4b71Sopenharmony_ci 5e41f4b71Sopenharmony_ci## cl.telephony.1 Radio Module API Change 6e41f4b71Sopenharmony_ci 7e41f4b71Sopenharmony_ci 8e41f4b71Sopenharmony_ci### Changed the `isNrSupported` API in the radio module of the telephony subsystem: 9e41f4b71Sopenharmony_ci 10e41f4b71Sopenharmony_ciNR is a proper noun and must be capitalized. 11e41f4b71Sopenharmony_ci 12e41f4b71Sopenharmony_ciYou need to adapt your application based on the following information. 13e41f4b71Sopenharmony_ci 14e41f4b71Sopenharmony_ci 15e41f4b71Sopenharmony_ci 16e41f4b71Sopenharmony_ci**Change Impact** 17e41f4b71Sopenharmony_ci 18e41f4b71Sopenharmony_ciThe JS API needs to be adapted for applications developed based on earlier versions. Otherwise, relevant functions will be affected. 19e41f4b71Sopenharmony_ci 20e41f4b71Sopenharmony_ci 21e41f4b71Sopenharmony_ci 22e41f4b71Sopenharmony_ci**Key API/Component Changes** 23e41f4b71Sopenharmony_ci 24e41f4b71Sopenharmony_ci- Involved APIs: 25e41f4b71Sopenharmony_ci 26e41f4b71Sopenharmony_ci isNrSupported(): boolean; 27e41f4b71Sopenharmony_ci isNrSupported(slotId: number): boolean; 28e41f4b71Sopenharmony_ci 29e41f4b71Sopenharmony_ci- Before change: 30e41f4b71Sopenharmony_ci 31e41f4b71Sopenharmony_ci```js 32e41f4b71Sopenharmony_cifunction isNrSupported(): boolean; 33e41f4b71Sopenharmony_cifunction isNrSupported(slotId: number): boolean; 34e41f4b71Sopenharmony_ci``` 35e41f4b71Sopenharmony_ci 36e41f4b71Sopenharmony_ci- After change: 37e41f4b71Sopenharmony_ci 38e41f4b71Sopenharmony_ci```js 39e41f4b71Sopenharmony_cifunction isNRSupported(): boolean; 40e41f4b71Sopenharmony_cifunction isNRSupported(slotId: number): boolean; 41e41f4b71Sopenharmony_ci``` 42e41f4b71Sopenharmony_ci 43e41f4b71Sopenharmony_ci 44e41f4b71Sopenharmony_ci 45e41f4b71Sopenharmony_ci**Adaptation Guide** 46e41f4b71Sopenharmony_ci 47e41f4b71Sopenharmony_ciUse the new API. The sample code is as follows: 48e41f4b71Sopenharmony_ci 49e41f4b71Sopenharmony_ci```js 50e41f4b71Sopenharmony_cilet result = radio.isNrSupported(); 51e41f4b71Sopenharmony_ciconsole.log("Result: "+ result); 52e41f4b71Sopenharmony_ci``` 53e41f4b71Sopenharmony_ci 54e41f4b71Sopenharmony_ci 55e41f4b71Sopenharmony_ci```js 56e41f4b71Sopenharmony_cilet slotId = 0; 57e41f4b71Sopenharmony_cilet result = radio.isNRSupported(slotId); 58e41f4b71Sopenharmony_ciconsole.log("Result: "+ result); 59e41f4b71Sopenharmony_ci``` 60