Yealink SIP- T28P User Manual

Enterprise IP Phone Using the Basic Call Functions
To configure Call Forward via Web interface:
Choose Phone->Features->Forward to do the relating changes. Please refer the above
configuration information.
During an Active Call
Mute
This function allows you to mute the microphone of the active audio device during a call;
you can not be heard by the other party. You can still hear all other parties while mute
is enabled.
To mute/unmute the conversation:
Press Mute button during the conversation, the icon will be shown in the LCD. Press
it again to get the microphone return to normal conversation.
Call Hold
This call function allows you to place an active call on hold. In this case your IP PBX
might play a melody or message to the other party while waiting. Other calls can be
received and made while having a call on hold.
To hold/resume a call:
1) Press the Hold button or Hold softkey to put your active call on hold.
2) If there is only one call on hold, press the Resume softkey or Hold button to retrieve
the call.
3) If there are more than one call on hold, press the line button, press the Up/Down
button to highlight the call, press the Resume softkey or Hold button to retrieve the
call.
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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