Note: this is a Navistream Companion App. Please contact Navistream Support to enable this add-on. Additional charges may apply.
To download and install Zello for Navistream please access this link and follow the steps provided.
http://streamline.zellowork.com/app
After installation, login with the credentials provided to you by Navistream Support.
If you have any questions please don't hesitate to contact us!