Cisco IP Phones 8961, 9951, or 9971 running Firmware Release 9.3(1) or later provide support for the Cisco VXC VPN feature, which provides integrated VPN functionality for the Cisco VXC 2112. You can use this feature to enable VPN tunneling for the Cisco VXC 2112 clients when they are attached to Cisco Unified IP Phones 8961, 9951, or 9971. This feature is not supported on the Cisco VXC 2212.
The Cisco VXC clients require no configuration to support the VPN. All VPN configuration is performed for the phone only.
To support the Cisco VXC VPN feature, the Cisco VXC 2112 clients must be running the minimum ICA Firmware Release 7.1_118 or later.
For more information, see Cisco Unified IP Phone 8961, 9951, and 9971 Release Notes for Firmware Release 9.3(1).