Step 1: Go to http://www.counterpath.com/x-lite.html to download the X-Lite softphone software and install it.
Step 2: From the SmartPBX toolbar, select Users.
Step 3: Once you’re in the Users tab, click on the specific user’s Devices. Click Add Device and select Softphone.
Step 4: Fill out the basic fields and create the device. The SIP Username and Password will be provided, but you will need to create a device name.
Step 5: Start X-Lite for the first time.
Step 6: Once you get into the App, you will need to access the Account information.
Step 7: Fill out the User Details fields by transferring information from the Kazoo UI to X-Lite.
In the Domain Proxy section:
You have now completed setting up a Softphone and can make calls!