Yealink SIP- T28P User Manual

Basic Call Features
87
Incoming calls on this line will be rejected automatically and "n New Missed
Call(s)" ("n" indicates the number of missed calls) will prompt on the LCD screen.
Note
To activate DND in custom mode for all accounts:
1. Press the DND soft key when the phone is idle.
The LCD screen displays a list of the accounts on the phone.
2. Press the All On soft key to activate DND for all accounts.
3. Press the Save soft key to accept the change.
The icon appears on the idle screen and all line icons change to .
Incoming calls will be rejected automatically and "n New Missed Call(s)" ("n"
indicates the number of missed calls) will prompt on the LCD screen.
To configure the DND authorized numbers via web user interface:
1. Click on Features->Forward & DND.
When DND and busy forward are enabled for a specific account, calls from the specific
account will be sent to the configured destination number. For more information on busy
forward, refer to Call Forward on page 88.

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