If you need need to transfer data such as contacts, apps, etc from an old iPhone to a new iPhone, then note in brief these steps….
- Backup old iPhone using iCloud
- On new iPhone complete phone setup process
- When given choice to Setup as New phone or Restore from iCloud, select Restore
- Wifi settings will need to be enabled
- If proxy is required then this can be configured during this process.
- Restore can take several minutes depending on size of backup