Yealink SIP-T38G Manual

Gigabit Color IP Phone Customizing Your Phone
Phone Setting
Contrast
Through this function, user can adjust the expansion model-EXP39’s contrast.
Premise is the expansion model is connecting to the phone.
Configure Contrast via phone interface:
1) Press Menu->Setting->Advanced Settings.
2) Enter the password required, scroll to Phone Setting option, and select Contrast
option.
3) Press the navigation keys or Switch soft key to choose contrast.
4) Press Save soft key to save the settings.
Lock
You can lock the keypad of your phone when you are temporarily not using it. This

Yealink SIP-T38G Specifications

General

Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Keypad number of keys	48
Touchscreen	-
Display resolution	480 x 272 pixels
Display number of colors	16.78 million colors
Lines quantity	- lines
Phonebook capacity	1000 entries
Number of VoIP accounts	6
Voice codecs	G.711, G.722, G.723.1, G.726
Bluetooth	No
Security algorithms	802.1x RADIUS, HTTPS, SSL/TLS
AC adapter input voltage	100 - 240 V
AC adapter output voltage	5 V
Power consumption (typical)	4.6 W
Operating relative humidity (H-H)	10 - 95 %
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Compliance industry standards	IEEE 802.3af
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	204 mm
Width	273 mm
Height	42 mm
Weight	1050 g