Unconditional call forwarding, or forwarding of all calls is available remotely using the voicemail system. This feature can be accessed remotely by dialing your phone number, and while listening to the voicemail greeting pressing the # key. This will allow you to enter your PIN and access the voicemail system. In the Personal options menu (8), you can enable call forwarding.
You may also control call fowarding through the online user portal at secv.user.alianza.com.