> For the complete documentation index, see [llms.txt](https://docs.secure-contacts.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.secure-contacts.com/enduser-guide/android-dual-sim.md).

# Android - Dual-Sim with SCA

Third-party apps like the SCA can’t actively control which SIM card is used for outgoing calls. \
\
SCA tells the operating system to dial a number. \
\
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.

<br>


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