You must be running Android at least Lollipop 5.0 (API 20) which refers to Android
Pro version 10. Earlier versions are not supported.
Step by Step
Download the OpenScape Mobile Pro application from Google Play Store to install it
onto your device.
INFO:
If you are connected to your corporate Wi-Fi network and you do not have an http proxy
configured, turn off Wi-Fi to download the application and turn Wi-Fi back on before
proceeding.
The application is not yet running and configured. Perform the steps in the following
section to configure it and pair it up with your desk phone.