Yealink SIP- T28P User Manual

User Guide for the SIP-T28P IP Phone
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2. Select Enabled from the pull-down list of DND Emergency.
3. Enter the numbers in the DND Authorized Numbers field.
For multiple numbers, enter a comma between every two numbers.
4. Click Confirm to accept the change.
When DND is enabled on the phone, the phone can still receive incoming calls from
the numbers specified in the DND Authorized Numbers field.
Note
You can configure your phone to forward incoming calls to another party through static
forwarding. You can also forward calls while your phone is ringing; refer to dynamic
forwarding.
Static Forwarding
Three types of static forwarding:
 Always Forward: Incoming calls are immediately forwarded.
 Busy Forward: Incoming calls are immediately forwarded if the phone is busy.
 No Answer Forward: Incoming calls are forwarded if not answered after a period
DND authorized number is configurable via web user interface only.
When the phone receives a voice mail, the voice mail prompt window will pop up by
default, if you want to disable the feature, contact your system administrator for more
information.

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