Yealink SIP- T28P User Manual

Customizing Your Phone
29
To adjust the volume when the phone is during a call:
1. Press to adjust the volume of currently engaged audio device
(handset, speakerphone or headset).
Ring tones are used to indicate incoming calls. You can select different ring tones to
distinguish different accounts registered on your phone, or to distinguish your phone
from your neighbor’s.
To select a ring tone for the phone via phone user interface:
1. Press Menu->Settings->Basic Settings ->Sound->Ring Tones->Common.
2. Press or to select the desired ring tone.
3. Press the Save soft key to accept the change or the Back soft key to cancel.
A ring tone for the phone is configurable via web user interface at the path
Settings->Preference->Ring Type.
To select a ring tone for the account via phone user interface:
1. Press Menu->Settings->Basic Settings ->Sound->Ring Tones.

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