Yealink SIP- T28P User Manual

Basic Call Features
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4. Press or , or the Switch soft key to select ReCall from the Key Type field.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
Recall key is configurable via web user interface at the path DSSKey.
You can mute the microphone of the active audio device during an active call so that
the other party cannot hear you. Call mute applies to all modes (Handset, Headset and
Speakerphone).
To mute a call:
1. Press during an active call.
The LCD screen indicates that the call is now muted.
To un-mute a call:
1. Press again to un-mute the call.
You can place an active call on hold. Only one active call can be in progress at any time.
Other calls can be made and received while placing the original call on hold. When you
place a call on hold, your IP PBX may play music to the other party while waiting.

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