You can set up call forwarding for your Cisco IP Phone through the Cisco Self Care Portal with the Call forwarding options. Follow the steps below to set up all calls forwarding and advanced forwarding from the Self-Care Portal.
To set up your phone to forward all incoming calls to another number, follow the instructions below on the Cisco Self Care Portal.
NOTE: If you are accessing the Cisco Self Care Portal from off campus, you will first need to connect to VPN.
Learn more about call forwarding and the Self Care Portal at Cisco Product Support.
Information courtesy of Cisco.