Call Forwarding Unconditional is used immediately, i.e.without a delay, for all incoming calls.

You can activate Call Forwarding Unconditional:

Calls are forwarded to your standard Voice Box or to the given number, depending on your configuration.

You can also change Immediate Call Redirection from another telephone line, see To change the settings for Forwarding Unconditional per Remote Inquiry.

If Call Forwarding Unconditional is not activated, you can also delay the forwarding of calls (8.2 Delayed Call Forwarding) or, if you are already telephoning, you can forward calls individually (8.3 Call Forwarding Busy).