When call forwarding for external numbers is used, calls directed to an external number (dialled by an external caller) are rerouted to other external connections. In this way, these calls can be taken on another telephone, for example, on a smartphone if no one can take the call internally.
Note: If you want to also forward internal calls, use call forwarding for users or for groups instead of call forwarding for external numbers. This also allows calls to be forwarded to internal telephones.
Note: The function can be configured with a VoIP exchange line via keypad codes (depending on the provider) via the keypad of the phone.
Configuration
•Enabling the following authorisation separately for the involved internal phones: Features to be configured by the network provider (CF, key pad)