Yealink SIP- T28P User Manual

Enterprise IP Phone Overview
Icon Instruction
The IP Phone displays different kinds of icons on its LCD, you can refer to the following
table for their meanings:
Icon Description
Flashes when the internet is disconnected
Account register failed
Account registering
Account register successful
Missed calls
Call in
Call out
Input Method: all letters and numbers
Input Method: numbers
Input Method: letters in lower case
Input Method: letters in upper case
Call mute
Call hold
Voicemail
SMS
Call forward
DND(Do not Disturb)
Auto answer
In handset mode
In headset mode
User Interface
There are two ways to customize specific options on your phones:
1. Using keypad and display on the phone;
2. Using Web user interface in an Internet browser from your PC; please refer to
“Configuration and Registration” to get into the Web interface.
In many instances, it is possible to use both the user interfaces to operate the phone
and change settings; some, however, are only possible via a phone or web user
interface. Please refer to the following table for differences:
- 10 -

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