When you are out of the office and don’t want to make calls from the phone’s account you have with you, make the call through the Cloud PBX account. Meaning the phone’s account you have with you doesn’t pay for the call but the Cloud PBX account does. This is great if your overseas so that you don’t need to accrue the international calling rates on your phone.
NOTE: Calls made out to remote dial tone numbers are charged as outbound calls. You will need to ensure you have enough calling credit in your account to make the call.