Yealink SIP-T40G Administrator's Guide

Network Configurations
49
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > Wi-Fi Port > IPv4 >
Static IPv4 Client > Sec.DNS
In DHCP environment:
Menu > Settings > Advanced Settings (default password: admin) > Network > Wi-Fi Port > IPv4 >
DHCP IPv4 Client > Static DNS (Enabled) > Sec.DNS
[1]
If you change this parameter, the phone will reboot to make the change take effect.
IPv6 Wireless Network Configuration
If you configure the network settings on the phone for an IPv6 network, you can set up an IP address for the phone
by using SLAAC (ICMPv6), DHCPv6 or by manually entering an IP address. Ensure that your network environment
supports IPv6. Contact your ISP for more information.
When you enable both SLAAC and DHCPv6 on the phone, the server can specify the IP phone to obtain the IPv6
address and other network settings either from SLAAC or from DHCPv6, if the SLAAC server is not working, the
phone will try to obtain the IPv6 address and other network settings via DHCPv6.
The following table lists the parameters you can use to configure IPv6 wireless network.
Parameter
static.network.wifi.ipv6_internet_port.type
[1]
<y0000000000xx>.cfg
Description
It configures the Internet port type for IPv6 wireless network.
Note: It works only if “static.network.wifi.ip_address_mode” is set to 1 (IPv6) or 2 (IPv4 & IPv6).
Permitted
Values
0-DHCP
1-Static IP
Default
0
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T46U, T46S, T43U, T42U, T42S, T41S, T27G, CP920
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:
Network > Wi-Fi > IPv6 Config > Configuration Type
Other Phones:
Network > Wi-Fi > IPv6 Config
Phone UI
Color Screen Phones:
Menu > Advanced (default password: admin) > Network > Wi-Fi Port > IPv6
Black-and-white Screen Phones:
Menu > Settings > Advanced Settings (default password: admin) > Network > Wi-Fi Port > IPv6
Parameter
static.network.wifi.ipv6_internet_port.ip
[1]
<y0000000000xx>.cfg
Description
It configures the IPv6 address for the wireless network.
Note: It works only if “static.network.wifi.ip_address_mode” is set to 1 (IPv6) or 2 (IPv4 & IPv6), and
"static.network.wifi.ipv6_internet_port.type" is set to 1 (Static IP).
Permitted
Values
IPv6 Address
Default
Blank
Supported
Devices
T57W, T54W, T53W, T53, T48U, T48S, T46U, T46S, T43U, T42U, T42S, T41S, T27G, CP920
Web UI
T57W/T54W/T53W/T53/T48U/T46U/T43U/T42U:

Yealink SIP-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm