Yealink T40G Administrator's Guide

Phone Network
25
->Network->VLAN->PC Port->Priority
[1]
If you change this parameter, the IP phone will reboot to make the change take effect.
DHCP VLAN
Yealink IP phones support VLAN discovery via DHCP. When the VLAN discovery method is set to DHCP,
the IP phone will examine DHCP option for a valid VLAN ID. The predefined option 132 is used to supply
the VLAN ID by default. You can customize the DHCP option used to request the VLAN ID.
The following table lists the parameters you can use to configure DHCP VLAN discovery.
Parameter
static.network.vlan.dhcp_enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the DHCP VLAN discovery feature on the IP phone.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Web UI
Network->Advanced->VLAN->DHCP VLAN->Active
Phone UI
T54S/T52S/T48S/T48G/T46S/T46G/T29G:
Menu->Advanced (default password: admin) ->Network->VLAN->DHCP
VLAN->DHCP VLAN
T42G/T42S/T41P/T41S/T40P/T40G/T27P/T27G/T23P/T23G/T21(P) E2/T19(P) E2:
Menu->Settings->Advanced Settings (default password: admin)
->Network->VLAN->DHCP VLAN->DHCP VLAN
Parameter
static.network.vlan.dhcp_option
[1]
<y0000000000xx>.cfg
Description
It configures the DHCP option from which the IP phone will obtain the VLAN settings.
You can configure at most five DHCP options and separate them by commas.
Permitted
Values
Integer from 1 to 255
Default
132
Web UI
Network->Advanced->VLAN->DHCP VLAN->Option (1-255)
Phone UI
T54S/T52S/T48S/T48G/T46S/T46G/T29G:
Menu->Advanced (default password: admin) ->Network->VLAN->DHCP
VLAN->Option
T42G/T42S/T41P/T41S/T40P/T40G/T27P/T27G/T23P/T23G/T21(P) E2/T19(P) E2:
Menu->Settings->Advanced Settings (default password: admin)
->Network->VLAN->DHCP VLAN->Option
[1]
If you change this parameter, the IP phone will reboot to make the change take effect.

Yealink T40G Specifications

General

SIP Accounts	3
Wall Mountable	Yes
Opus Codec	No
Display	2.3 inch 132x64-pixel graphical LCD
Network	Dual-port Gigabit Ethernet
PoE	Yes
Headset Support	Yes, RJ9 port
Power Adapter	Optional
Voice Codecs	G.722, G.711(A/μ), G.729AB, G.726
Local Phonebook	1000 entries