10.2 Conditional forwarding
You can use this forwarding function to specify whether telephone calls are forwarded if you have left the telephone ringing for a certain period of time.
To forward calls that you do not answer (Unconditional call forwarding)
1 Open your dashboard.
2 Under Reachability, tap Call Forwarding .
3 Activate If No reply in the Conditional area.
4 Enter the number of seconds. Calls are forwarded if you have not accepted them within this time.
 
As of iOS version 16, the call is always forwarded after 60 seconds, even if you have entered a value in the "After" field > 60 seconds. Forwarding under 60 seconds takes place according to the input.
 
5 Enter the destination in the Forward to field. You can choose between:
*Selection from the contacts
*Entering a phone number
*Your voicemail.
*Incoming calls are forwarded to the selected destination.