Assigning your preferred cellular plan to use with a contact
Set a contact's preferred line when you have two SIM cards. This will make the preferred line the default whenever you interact with that contact.
1.
From the Contacts app, select the contact you'd like to manage your preferred cellular plan for.
2.
Scroll to and tap Set calling SIM.
3.
Select the number you'd like to use.
The labels you've chosen may differ from this tutorial, but the same steps should still apply.
4.
Tap OK.
5.
You've completed the steps!
