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Dual SIM with an eSIM
Apple iPhone - Dual SIM with an eSIM - Switch Default Voice Line
Apple® iPhone® - Dual SIM with an eSIM - Switch Default Voice Line
The steps below apply to the following models:
iPhone XS / XS Max
The Default Voice Line is the primary line used for voice, SMS and Data.
From the Home screen, navigate:
Default Voice Line
This option is only available when both the physical SIM card and eSIM are activated.
Tap the desired line (e.g., Primary, Secondary, etc.).
Selected when a checkmark is present.
For additional Dual SIM info, check out this
Switch Designated iMessage / Facetime Number
Change Default Cellular Data Number
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