Yealink SIP- T28P User Manual

Enterprise IP Phone Using the Advanced Phone Functions
Note:
For more details of the HTTPS, you can consult with your system administrator.
Maintenance Tasks
Administrator Mode
The phone allows two modes to configure the phone:
z User Mode
z Administrator Mode
Administrator mode grants unlimited access to the phone configuration on both Web
and Phone interface. User Mode is not able to access the settings on the Phone interface
such as: Accounts, Network, Reset to Factory, other phone settings.
Administrator/User Password
Administrator mode grants unlimited access to the phone configuration on both web
and phone user interface. The administrator/user password is used to access:
z Web interface along with user name.
z the advance settings of the phone such as Network, Account, Reset to Factory
Settings via the Phone interface.
The default administrator password is admin. Meanwhile the user name for Web
interface access is admin.
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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