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Truth_Seeker_MT OP t1_j9lq9s7 wrote

I'm sorry... my explanation post didn't make it up.

I have an iPhone 13 Pro with a both a physical sim and esim from different vendors. Both have unlimited plans. One of my plans has terrible coverage outside my city and it never seems to switch to the other.

Has anyone else had this work? Are there other settings I should look at?

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Immediate-Pea-4722 t1_j9m06q1 wrote

For this setting to work your first plan needs to have no coverage at all, that’s what makes this setting so frustrating. What you can do is change the to the better line on the same page as this setting. That’s what I currently use: Primary eSIM for my actual phone number associated with iMessage, second physical SIM for DATA with the switch enabled.

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phlavor t1_j9mna7v wrote

Yes! I had AT&T on one SIM for my personal number and Verizon on another SIM for my work number. But I had all data go through Verizon, and would forward my personal number to my work number when traveling internationally as work would flip the bill for international calling. It worked very well and was something I rarely had to deal with once I set it up.

Eventually I changed the AT&T personal to Verizon because, well, I hate AT&T.

And when I left that job, Apple was able to transfer my personal sim to a new phone and my personal contacts went with it and my business contacts stayed on that phone which, I believe is more a function of iCloud.

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