Yealink SIP-T2 SERIES Administrator's Manual page 721

Details of Configuration Parameters:
Parameters
network.vpn_enable
Description:
Enables or disables OpenVPN feature on the IP phone.
0-Disabled
1-Enabled
Note: If you change this parameter, the IP phone will reboot to make the change
take effect. It is not applicable to SIP-T19(P) E2 IP phones.
Web User Interface:
Network->Advanced->VPN->Active
Phone User Interface:
Menu->Settings->Advanced Settings (default: admin) ->Network->VPN->VPN
Active
openvpn.url
Description:
Configures the access URL of the *.tar file for OpenVPN.
Example:
openvpn.url = http://192.168.10.25/OpenVPN.tar
Note: It is not applicable to SIP-T19(P) E2 IP phones.
Web User Interface:
Network->Advanced->VPN->Upload VPN Config
Phone User Interface:
None
To upload a TAR file and configure VPN via web user interface:
1. Click on Network->Advanced.
2. Click Browse to locate the TAR file from the local system.
Configuring Advanced Features
Permitted Values
0 or 1
URL within 511 characters
Default
0
Blank
699