How to set up click to call
Desktop-based calling
1 Download and install the Nextiva App on your desktop.
2 Sign in to the Nextiva App.
3 Set Nextiva as the default calling app for your operating system.
Windows 10
1 Click the Start menu and select Settings.
2 Click on Apps, then Default apps.
3 Scroll down and click on Default apps by protocol.
4 Locate TEL (URL:Tel Protocol) and click on the button labeled “Choose a default.”
5 Select Nextiva from the list of phone apps.
macOS
1 Open FaceTime. If prompted, sign in with your Apple ID.
2 Click the FaceTime menu located at the top left and select Preferences.
3 Near the bottom, change the "Default for calls" dropdown menu to Nextiva App.
4 Close the window. The settings will be saved when you click on phone numbers.