Note: The following information applies to the IS330.x Mobile Phone, IS530.x and IS655.x Smart Phone and the IS930.x Tablet

Please follow the pictures. This example is done with the IS530.1

Open Dialer

Open Menu

Choose Settings

Open Calling accounts

Choose your provider

Open Call forwarding

Open Voice

Choose the kind of forwarding you want to change

This device is using the USSD codes (GSM Codes) from providers, so that the call is directly forwarded from Provider itself and not from the device.