Assign User a CallAction Phone Number
Click "Phone Numbers"
Click on "Manage" for the phone number you plan to assign
Go to the "Destination Number" drop down
Use the drop down to select and assign the "User" the phone number
Click "Save Changes" at bottom of the page
Next, your user should start to personalize their text message settings and set up CRM and lead source integrations and familiarize themselves with the user interface.