Can anyone tell me how to enable Borderless Calling online?
Do you mean international dialing? To do that log into members.sonic.net, navigate to 'Voice' then select your phone number under 'Phone Number List'. Then click 'Settings for your phone number'. On that page you'll be able to enable international dialing.
Borderless calling isn't something to toggle, if you need a list of which countries qualify for borderless calling refer to the link below. All regions highlighted in green are in the Borderless Calling program.
https://www.sonic.com/fusion-voice-international-rates
