Yealink SIP-T23G User Manual

Customizing Your Phone
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2. Press or to select the desired language.
3. Press the Save soft key to accept the change.
Text displayed on the phone user interface will change to the selected language.
To change the language for the web user interface:
1. Click on Settings->Preference.
2. Select the desired language from the pull-down list of Language.
3. Click Confirm to accept the change.
Text displayed on the web user interface will change to the selected language.
The time and date are displayed on the LCD screen when the phone is idle. You can
configure the phone to obtain the time and date from the SNTP server automatically, or
configure the time and date manually. If the phone cannot obtain the time and date
from the Simple Network Time Protocol (SNTP) server, contact your system administrator
for more information.
To configure the SNTP settings via phone user interface:
1. Press Menu->Settings->Basic Settings->Time & Date->SNTP Settings.
2. Press or , or the Switch soft key to select the time zone that applies to your

Yealink SIP-T23G Specifications

General

Backlight	Yes
Voice codecs	G.711a, G.722.2, G.726, G.729ab, iLBC
Volume control	Digital
Handset type	Wired handset
Product type	IP Phone
Product color	Black, Silver
Display resolution	132 x 64 pixels
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Networking standards	IEEE 802.1p, IEEE 802.1Q, IEEE 802.1x, IEEE 802.3af
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)	1.56 W
Number of handles included	- pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Depth	188 mm
Width	209 mm
Height	150 mm