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