Yealink SIP- T28P User Manual

Customizing Your Phone
21
2. Press or to select the desired language.
3. Press the Save soft key to accept the change.
Text displayed on the LCD screen 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. If the phone
cannot obtain the time and date from the Simple Network Time Protocol (SNTP) server,
you need to configure the time and date manually. For more information on the SNTP
server, contact your system administrator.
To configure the SNTP settings via phone user interface:
1. Press Menu->Settings->Basic Settings->Time & Date->SNTP Settings.

Yealink SIP- T28P Specifications

General

Expansion module support	Yes
Ethernet LAN (RJ-45) ports	2
Keypad number of keys	48
Voice codecs	G.711, G.722, G.723.1, G.726
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Touchscreen	-
Display resolution	320 x 160 pixels
Lines quantity	- lines
Phonebook capacity	- entries
Number of VoIP accounts	6
Bluetooth	No
Security algorithms	HTTPS, SSL/TLS
AC adapter input voltage	100 - 240 V
AC adapter output voltage	5 V
Power consumption (typical)	2.6 W
Operating relative humidity (H-H)	10 - 95 %
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