Yealink SIP- T28P User Manual

User Guide for the SIP-T28P IP Phone
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4. Press the Save soft key to accept the change or the Back soft key to cancel.
Note
To listen to voice mails:
1. When the LCD screen prompts that the phone receives a new voice mail, press
or the Connect soft key to dial out the voice mail access code.
2. Follow the voice prompt to listen to your voice mails.
Note
To view voice mails via phone user interface:
1. Press Menu->Messages->Voice Mail->View Voice Mail.
The LCD screen displays the amount of new and old voice mails.
2. Select an account and then press the Connect soft key to listen to voice mails.
The SIP-T28P IP phone supports MWI feature when receiving a new voice message. If
someone leaves you a voice mail, you will receive a message waiting indicator. MWI
will be indicated in three ways: a warning tone, a prompt message (including a voice
mail icon) on the LCD screen, and the MESSAGE key LED illuminates solid green. This
will be cleared when you retrieve all voice mails or delete them.
The MWI service is unsolicited for some servers, so the SIP-T28P IP phone only handles
the MWI messages sent from the server. But for other servers, the MWI service is
solicited, so the SIP-T28P IP phone must enable subscription for MWI.
Note
Voice mail access codes must be predefined on the system server. Contact your system
administrator for the more information.
MWI service is not available on all servers. Contact your system administrator for more
information.
Before listening to voice mails, make sure the voice mail access code has been
configured.
When all new voice mails are retrieved, the MESSAGE key LED will go out.

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