Yealink SIP-T48G Administrator's Manual page 61

Parameters
4-Half Duplex, 100Mbps
5-Full Duplex, 1000Mbps (only applicable to SIP-T48G/T46G/T42G/T29G/T23G IP
phones)
Note: We recommend that you do not change this parameter. If you change this
parameter, the IP phone will reboot to make the change take effect.
Web User Interface:
Network->Advanced->Port Link->PC Port Link
Note: For SIP-T29G and SIP-T23G IP phones, 1000Mbps cannot be configured via web
user interface.
Phone User Interface:
None
To configure the transmission methods of Ethernet ports via web user interface:
1. Click on Network->Advanced.
2. Select the desired value from the pull-down list of WAN Port Link.
3. Select the desired value from the pull-down list of PC Port Link.
4. Click Confirm to accept the change.
The PC port on the back of the IP phone is used to connect a PC. You can enable or
disable the PC (LAN) port on the IP phones via web user interface or using configuration
Getting Started
Permitted Values Default
47