Yealink SIP-T38G Manual

Gigabit Color IP Phone Customizing Your Phone
5) And then choose disable this option.
To configure keypad lock via Web interface:
Choose Phone->Preference-> Keyboard Lock to do the relating changes. Please refer to
the instruction above for the parameters’ detail.
Note:
1. The default password for unlock is admin.
Reset to factory
You should reset the phone only in this case: the phone configuration was changed and
the phone is not functioning anymore. To maintain the configuration of the phone, you
need your system administrator or service provider’s advice.
To reset to factory via phone interface:
1) Press Menu->Setting->Advanced Settings.
2) You are prompted to enter the required password, scroll to Reset to factory, press
Enter soft key.
3) You are prompted to confirm the change, press OK soft key to reset to factory
settings, press Cancel soft key to return to previous menu.
4) It will take a few minutes to reset, please do not power off during resetting, or it will
cause flash memory error.

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