Yealink SIP-T33P Administrator's Guide

Phone Customization
208
Default
600
Supported
Devices
All color screen phones
Parameter
screensaver.picture_change_interval <y0000000000xx>.cfg
Description
It configures the interval (in seconds) for the phone to change the picture when the screen saver
starts.
Note: It works only if “screensaver.type” is set to 1 (Custom) and the parameter “screensaver.upload_
url” should be configured in advance.
Permitted
Values
Integer from 5 to 1200
Default
60
Supported
Devices
All color screen phones
Parameter
features.blf_active_backlight.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to turn on the backlight or stop the screen saver when the BLF/BLF
list status changes.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Supported
Devices
All phones except T30P, T30, T19(P) E2 and CP920
Adding a Screensaver Picture from a USB Flash Drive
The T57W/T54W/T48U/T48S/T48G/T46U/T46S/T46G/T29G IP phone enables you to add a screensaver picture
from a USB flash drive on their phones. You can navigate to Menu > USB > Browse Photo, preview pictures, and
then set the desired picture as a screensaver. After you set a picture in USB flash drive as a screensaver, the pic-
ture is added to the Screensaver list.
Note: Yealink phones support USB flash drive in FAT32 or NTFS format.
Related Topic
Custom Screensaver Picture Limit
Deleting a Screensaver Picture
You can delete the uploaded custom pictures for a specific IP phone via the web user interface at the path: Settings
> Preference, select Custom from the Screensaver Type field, and then select a desired custom picture from the
Screensaver field, click Del (Delete). You can only delete the custom pictures.
Backlight
You can change the backlight brightness of the phone screen during phone activity and inactivity. The backlight
brightness automatically changes when the phone is idle for a specified time. It is not available on T30P/T30/T19(P)
E2 phones.
You can change the screen backlight brightness and time in the following settings:
Active Level: The brightness level of the LCD screen when the phone is active. Digits (1-10) represent different
brightness levels. 10 is the brightest level.

Yealink SIP-T33P Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Gray
Wall mountable	Yes
Operating system installed	Linux
Lines quantity	4 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	4
Volume control	Buttons
Number of function keys	5
Display diagonal	2.4 \
Display resolution	320 x 240 pixels
Voice codecs	AGC, AJB, CNG, G.711a, G.711u, G.722, G.723.1, G.726, G.729, G.729A, PLC, VAD, iLBC
Security algorithms	AES, HTTPS
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
RJ-9 ports quantity	1
Ethernet LAN (RJ-45) ports	2
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
Power consumption (typical)	3 W
Power consumption (Power over Ethernet (PoE))	5 W
Number of handles included	1 pc(s)
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %

Weight and Dimensions

Depth	186 mm
Width	212 mm
Height	146 mm