Yealink T21PE2 User Manual

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Description
It configures the way the IP phone processes packets for the PC port when VLAN is enabled on the PC
port.
Note: When packets are sent from the Internet port to the PC port, remove the packet’s tag if it is the
same as the configured tag for the PC port, else forward the packets directly. It is not applicable to CP920
IP phones.
Permitted
Values
0-when packets are sent from the PC port to the Internet port, the IP phone will forward the packets dir-
ectly.
1-when packets are sent from the PC port to the Internet port, and there is no VLAN tag in the packet, the
IP phone will tag the packet with the configured tag for the PC port and then forward it.
Default 1
[1]
If you change this parameter, the IP phone will reboot to make the change take effect.
VPN
Yealink IP phones use OpenVPN to achieve VPN feature. To prevent disclosure of private information, tunnel endpoints
must authenticate each other before secure VPN tunnel is established. After you configure VPN feature on the IP
phone, the IP phone will act as a VPN client and use the certificates to authenticate with the VPN server.
For more information, refer to OpenVPN Feature on Yealink IP phones.
Topics
VPN Related Files
VPN Configuration
VPN Related Files
To use VPN, you should collect the VPN-related files into one archive file in .tar format and then upload this tar file.
The VPN-related files include certificates (ca.crt and client.crt), key (client.key) and the configuration file (vpn.cnf) of
the VPN client.
The following table lists the unified directories of the OpenVPN certificates and key in the configuration file (vpn.cnf)
for Yealink IP phones:
VPN Files Description Unified Directories
ca.crt CA certificate /config/openvpn/keys/ca.crt
client.crt Client certificate /config/openvpn/keys/client.crt
client.key Private key of the client /config/openvpn/keys/client.key
VPN Configuration
The following table lists the parameters you can use to configure VPN.
Parameter
static.network.vpn_enable
[1]
<y0000000000xx>.cfg
Description It enables or disables the OpenVPN feature on the IP phone.
Permitted
Values
0-Disabled
1-Enabled

Yealink T21PE2 Specifications

General

Brand	Yealink
Model	T21PE2
Category	IP Phone
Language	English