Yealink SIP-T38G Administrator's Guide

Administrator’s Guide for SIP-T3xG IP Phones
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The web user interface pops up the dialog box to prompt ―Firmware of the SIP PHONE
will be updated. It will take several minutes to complete. So, please don't power off!‖.
5. Click OK to confirm the upgrading.
Note
Upgrade Firmware from the provisioning server
The IP phones support to use the FTP, TFTP, HTTP, and HTTPS protocols to download the
configuration files and firmware from the provisioning server, and then upgrade the
firmware automatically.
The IP phones can download the firmware stored on the provisioning server in one of
two ways:
 The IP phones check for both configuration files and firmware stored on the
provisioning server during booting up.
 The IP phones automatically check for configuration files and firmware at a fixed
interval or at specific time.
You can configure the way for the IP phones to check for configuration files and
firmware.
Procedure
Configuration changes can be performed using the configuration files or locally.
Configuration File
<y0000000000xx>.cfg
Configure the way for the IP
phone to check for
Do not unplug the network and power cables when the IP phone is upgrading the
firmware.
Do not close the browser when the IP phone is upgrading the firmware via web user
interface.

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