On your Android, you can replace the default Dialer when calling a number from Upvise with any other available apps installed: MobileVOIP, VoipConnect etc..
If you wish to adjust this preference, go to your Android Device’s Settings Application manager. Select the “All” tab.
Find “Dialer” or “Phone,” depending on the device. In this app’s screen, there will be a “Launch by Default” setting – clear this to reset the prompt. When you next dial from Upvise, you should be prompted to choose your preferred phone dialer from the available apps installed.