# Android - Dual-Sim with SCA

Third-party apps like the SCA can’t actively control which SIM card is used for outgoing calls. \
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SCA tells the operating system to dial a number. \
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Which Caller-App or SIM card will be used is part of Android \
and depends on the OS-Settings of the device.\ <br>

We recommend, the following:

* The **business SIM** should be set as the default for outgoing calls in device settings.
* All private contacts should be saved with the private SIM assigned for outgoing calls.

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