Yealink SIP- T28P User Manual

Basic Call Features
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another incoming call is automatically rejected by the phone with a busy message
when there is an active call on the phone. You can also enable or disable the phone to
play a warning tone when receiving another call.
To configure call waiting via phone user interface:
1. Press Menu->Features->Call Waiting.
2. Press or , or the Switch soft key to select Enabled from the Call Waiting
field.
3. Press or , or the Switch soft key to select Enabled from the Play Tone field.
4. (Optional.) Enter the call waiting on code and off code respectively in the On Code
and Off Code field.
Call waiting on code/ off code is used to activate/deactivate the server-side call
waiting feature when the user enables/ disables call waiting feature on the phone.
5. Press the Save soft key to accept the change or the Back soft key to cancel.
Call waiting is configurable via web user interface at the path Features->General
Information.
You can create a conference with other two parties using the phone’s local conference.
You can create a conference between an active call and a call on hold (on the same or
another line) by pressing the CONF key or the Conf soft key.
Note
The SIP-T28P IP phone supports up to 3 parties (including yourself) in a conference call.
This is the default method of conference called Local Conference.
To set up a local conference call:
1. Place a call to the first party.
Network conference is not available on all servers. For more information, contact your
system administrator.

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