Yealink SIP- T28P User Manual

Enterprise IP Phone Using the Advanced Phone Functions
1) Choose Phone->DSS Key ->Memory Key or Line Key, choose one of the key you
want to make the assignment, there is a pull-down menu in the Type field, choose
KeyEvent from the list, then in the Mode field, open the pull-down menu and
choose Voicemail from the list.
2) In the "Line" field, select a line for which to apply this key, and enter the extension
number you want to set as the voice mail box.
3) Press Confirm button to save the changes.
Custom
You are allowed to send out the desired DTMF number during the conversation. The
number needs to be set in advance.
To assign the key as Custom:
1) Choose Phone->DSS Key ->Memory Key or Line Key, choose one of the key you
want to make the assignment, there is a pull-down menu in the Type field, choose
KeyEvent from the list, then in the Mode field, open the pull-down menu and
choose Custom from the list.
2) In the “Extension” filed, enter the specific number.
3) Press Confirm button to save the changes.
Public Hold
The key can be configured as a public hold key. During a conversation, all members
belonging to that particular BLA group can use this key to hold or retrieve a call.
To assign the key as Public Hold:
1) Choose Phone->DSS Key ->Memory Key, choose one of the key you want to make
the assignment, there is a pull-down menu in the Type field, choose KeyEvent from
the list, then in the Mode field, open the pull-down menu and choose Public Hold
from the list.
2) Press Confirm button to save the changes.
Private Hold
The key can be configured as a private hold key. During a conversation, all members
belonging to that particular BLA group can use this key to hold the call, but only the
initiator can retrieve the call.
To assign the key as Private Hold:
1) Choose Phone->DSS Key ->Memory Key, choose one of the key you want to make
the assignment, there is a pull-down menu in the Type field, choose KeyEvent from
the list, then in the Mode field, open the pull-down menu and choose Private Hold
from the list.
Press Confirm button to save the changes.
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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