This quick start guide provides instructions for using the PrivateGSM demo app on iPhone, including:
1) Installing the app and activating it through an automatic setup process.
2) How to make and receive secure calls by running the app and exchanging encryption keys.
3) Factors that can affect call quality like network conditions and tips for verifying call security.
4) The app will limit to receiving only in the demo trial period after installation.
5) Contact information is provided for technical support questions.
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