Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones 
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3.  Press          or          to highlight Known Network(s), and then press the Add soft key. 
4.  Use the WLAN settings obtained from your gateway/router to configure this WLAN Profile 
on the IP phone. Do the following: 
a)  If you select None or WEP from the pull-down list of Security Mode: 
Enter the profile name, SSID and WPA shared key in the corresponding fields. 
b)  If you select WPA-PSK or WPA2-PSK from the pull-down list of Security Mode: 
Select the desired Cipher type (TKIP, AES or TKIP AES) from the pull-down list of Cipher 
Type. 
Enter the profile name, SSID and WPA shared key in the corresponding fields. 
5.  Tap the Save soft key to accept the change. 
VLAN 
VLAN (Virtual Local Area Network) is used to logically divide a physical network into several 
broadcast domains. VLAN membership can be configured through software instead of 
physically relocating devices or connections. Grouping devices with a common set of 
requirements regardless of their physical location can greatly simplify network design. VLANs 
can address issues such as scalability, security and network management. 
The purpose of VLAN configurations on the IP phone is to insert tag with VLAN information to 
the packets generated by the IP phone. When VLAN is properly configured for the ports 
(Internet port and PC port) on the IP phone, the IP phone will tag all packets from these ports 
with the VLAN ID. The switch receives and forwards the tagged packets to the corresponding 
VLAN according to the VLAN ID in the tag as described in IEEE Std 802.3. 
VLAN on IP phones allows simultaneous access for a regular PC. This feature allows a PC to be 
daisy chained to an IP phone and the connection for both PC and IP phone to be trunked 
through the same physical Ethernet cable. 
In addition to manual configuration, the IP phone also supports automatic discovery of VLAN 
via LLDP, CDP or DHCP. The assignment takes effect in this order: assignment via LLDP/CDP, 
manual configuration, then assignment via DHCP. 
For more information on VLAN, refer to 
VLAN Feature on Yealink IP Phones
. 
Procedure 
VLAN assignment method can be configured using the configuration files.