Yealink SIP- T28P Quick Start Guide

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Startup
3. Connect the network and power, as shown below:
Internet
a. AC Power Option
b. PoE (Power over Ethernet) Option
Note: If inline power (PoE) is provided, you do not need to connect the power adapter. Make sure the Ethernet
cable and hub/switch are PoE compliant.
Power Adapter
(DC 5V)
PC Connection
(Optional)
PC Connection
(Optional)
IEEE 802.3af compliant
PoE Hub/Switch
You have two options for network and power connections. Your system administrator will advise
you on which one to use.
After the IP phone has been connected to the
network and supplied with power, it automatically
begins a process of initializing itself on the network.
After that, you can begin to configure the phone via
web user interface or phone user interfafce.

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