How to set iphone to save call records for longer?

There is no specific storage time for Apple's mobile phone call records, but they are stored according to the number of call records, at most 100. If the number of recent calls exceeds 100, the system will automatically clear the original record and cannot retrieve it. Before the number of call records reaches 100, we can use backup to save the call records for a longer time.

1. Open the address book, click "Recent Calls" and swipe up to query the previous call records.

2. Find the settings on the phone desktop, enter the settings page, and click its Apple ID account.

3. After entering the Apple ID page, find "icloud" and click to enter the icloud page.

4. Check whether iCloud backup is turned on. If not, click Open.

5. Find the address book, click Open, and the address book will be backed up to iCloud.