Yealink SIP- T28P User Manual

Enterprise IP Phone Overview
Speed dial, Intercom, Pickup, Hold, Transfer, etc. If not stated the adjacent LED will
light when the assigned functionality is turned on.
Dial Pad
Use the DTMF hard keys to enter numbers, letters and special characters. Depending on
the selected input mode, you can enter digits, lower / upper case or special characters.
Navigation Keys
Use the navigation keys to navigate in the display menus and confirm or cancel actions.
Audio Device Control Keys
Use the audio device control keys to perform the following actions depending on your
phone type:
： Adjust the volume of the handset, headset, speaker and ring tone;
： Allows for hands-free communication during calls;
： Place and receive calls through an optionally connected headset. The LED will
be on when the phone is in Headset mode;
： Mute audio transmission locally during calls;
Hard Feature Keys
： Allow users to access the voicemail and SMS directly;
： Enable setup of a local 3-way conference;
： Place a call on hold or resume it;
： Transfer current call to third party;
： Dials most recently dialed number;
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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