Yealink SIP- T28P User Manual

User Guide for the SIP-T28P IP Phone
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You can use anonymous call to block your identify and phone number from appearing
to the called party when you call someone. For example, you want to call to consult
some of the services, but don’t want to be harassed. Anonymous call is configurable on
a per-line basis. You can also configure the phone to send anonymous call on/off code
to the server to activate/deactivate anonymous call on the server side.
Note
To configure anonymous call via phone user interface:
1. Press Menu->Features->Anonymous Call.
2. Press or , or the Switch soft key to select the desired line from the Account
ID field.
3. Press or to select Enabled from the Local Anonymous field.
4. (Optional.) Press or to select the desired value from the Send Anony Code
field.
5. (Optional.) Enter the anonymous call on code and off code respectively in the On
Code and Off Code field.
The phone will send the configured on code or off code depending on your
selection when you enable or disable anonymous call feature on the phone.
6. Press the Save soft key to accept the change or the Back soft key to cancel.
Anonymous call is configurable via web user interface at the path Account->Basic.
Anonymous call is not available on all servers. Contact your system administrator for the
anonymous call on code and off code.

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