Please follow the steps below to find the Call Forwarding feature on ZB602KL:
1. Swipe up on the main screen to check All Apps, choose Phone from the list.
2. Press the three dots on top right corner and choose Settings.
3. Choose Calling accounts
4. Choose your SIM card from the list (CARD 1 for example)
5. Click GSM Call Settings
6. Choose Call forwarding