Yealink SIP- T28P User Manual

Enterprise IP Phone Overview
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Overview
Keypad Instruction
You can check the following list which introduces the IP phone’s keypad in details:
Power Indication LED
It will show the power status, it will be on if the phone is powered, off if the phone is not
powered.
Context-sensitive Softkeys
The screen will display labels for these keys, to identify their context-sensitive
functions.
Account Buttons
These buttons are used to active up to the six user accounts.
Programmable Keys
These keys are used for various functionalities such as call /Line appearance Button,

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