On your mobile device, go to your app store and search for Nimbus phone and install it.
After the installation, you'll need to register your mobile app to make and receive calls and/or texts from your company phone system.
Open your mobile app (NumbusPhone) and find the QR Code Scanner button under the login. Click the icon and scan the QR code you received in your email.
Once scanned, it will automatically log you in to your extension and you will be able to use the app to make and receive phone calls using your companies phone system.