Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
218
Time Zone Time Zone Name Time Zone Time Zone Name
+1 Czech Republic(Prague) +12 Fiji Islands
+1 Denmark(Kopenhagen) +12 Russia(Kamchatka Time)
+1 France(Paris) +12 Anadyr
+1 Germany(Berlin) +12 Petropavlovsk-Kamchatsky (RTZ 11)
+1 Hungary(Budapest) +12 Marshall Islands
+1 Italy(Rome) +12:45 New Zealand(Chatham Islands)
+1 Switzerland(Bern) +13 Nuku'alofa
+1 Sweden(Stockholm) +13 Tonga(Nukualofa)
+1 Luxembourg(Luxembourg) +13 Samoa
+1 Macedonia(Skopje) +13:30 Chatham Islands
+1 Netherlands(Amsterdam) +14 Kiribati
+1 Namibia(Windhoek)
NTP Settings
You can set an NTP time server for the desired area as required. The NTP time server address can be offered by
the DHCP server or configured manually.
Topic
NTP Configuration
NTP Configuration
The following table lists the parameters you can use to configure the NTP.
Parameter
local_time.manual_ntp_srv_prior <y0000000000xx>.cfg
Description
It configures the priority for the phone to use the NTP server address offered by the DHCP server.
Permitted
Values
0- High (use the NTP server address offered by the DHCP server preferentially)
1- Low (use the NTP server address configured manually preferentially)
Default
Value
0
Web UI
Settings > Time&Date > NTP by DHCP Priority
Parameter
local_time.dhcp_time <y0000000000xx>.cfg
Description
It enables or disables the phone to update time with the offset time offered by the DHCP server.
Note: It is only available to offset from Greenwich Mean Time GMT 0.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Web UI
Settings > Time&Date > DHCP Time
Phone UI
Color Screen Phones:
Menu > Basic > Time & Date > DHCP Time

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