What software does Apple have that can back up short messages in the cloud?

How to transfer Apple's mobile phone backup to another mobile phone;

First, use cloud hosting for transmission.

Specific operation: 1. The old mobile phone enters iCloud, and you can synchronize the address book on the mobile phone by logging in to the Apple ID account.

2. After logging in to iCloud, click Merge to check whether the address book on iCloud is synchronized. If so, the address book will be automatically backed up to Apple's iCloud cloud server.

3. Then do the same operation with another mobile phone.

4. Use the third-party software to back up the address book, and the operation is the same.