To set up call forwarding via the TK-Portal, proceed as follows:

Step 1
Call up the TK-Portal.

Step 2
Navigate to the submenu "General settings".

Step 3
Click on the gear icon to the right of “Call forwards”.

Step 4
This will open a pop-up window.

In this window you have the possibilities to set up call forwarding for different states:

• all calls
• calls received when line is busy
• unreceived calls
• calls during no network coverage
• calls while no phone is registered

You will receive three options for where calls are forwarded:

• Do not forward (deactivates call forwarding)
• Voicebox (forwarding to a Voicebox (which must be active))
• New number (forwarding to a phone number). Please ensure that the correct notation is used:
  • XXXXX (for RWTH internal numbers)
  • External numbers with a leading 0 (0151xxxxxxxx)
  • or external numbers in the E.164 format (+49151xxxxxx)

If you select the"When there is no answer, forward calls to:", you can also select a time limit, after which a given call will count as "not received".
The 4 second steps for this option are roughly equivalent to one ring of the phone.