Yealink SIP- T28P User Manual

Enterprise IP Phone Customizing Your Phone
Codec Selection
The IP phone supports the following voice codecs:
G723_63, G722, G726-16, G726-24, G726-32, G726-40, PCMA, G729, PCMU and
G723_53.
You can enable/disable the desired codecs via Web interface. Please contact your
System Administrator for more details about the codecs.
To enable/disable the codecs:
1) Choose Account-> Codecs.
2) Use the navigation keys to highlight the desired one in the Enabled/Disable Codecs
list, and press the
/ to move to the other list.
3) Click Confirm to save the change.
Note:
Codec selection can only be set via Web interface.
Contact Management
Edit/Add/Delete Contact
You can store a large number of contacts in your phone's directory. You can add, edit,
delete, dial, or search for a contact in this directory.
To add a contact via Phone interface:
- 18 -

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