Yealink SIP-T40G Administrator's Guide

Administrator’s Guide for SIP-T2 Series/T4 Series/T5 Series/CP920 IP Phones
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Parameter
features.action_uri.enable <y0000000000xx>.cfg
Description
It enables or disables the phone to receive the action URI requests.
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter
features.show_action_uri_option <y0000000000xx>.cfg
Description
It enables or disables the phone to pop up the Allow Remote Control prompt when receiving action
URI requests.
Note: It works only if “features.action_uri.enable” is set to 1 (Enabled).
Permitted
Values
0-Disabled
1-Enabled
Default
1
Parameter
features.action_uri_limit_ip <y0000000000xx>.cfg
Description
It configures server address from which the phone receives the action URI requests.
Multiple addresses are separated by commas. (for example, 10.1.4.3,10.1.4.23); Support asterisk wild-
card, each asterisk represents a field of the IP address (10.10.*.* represents 10.10.0.0 to
10.10.255.255).
Note: It works only if “features.action_uri.enable” is set to 1 (Enabled).
Permitted
Values
IP address
Blank-the phone will reject any HTTP GET request.
any-the phone will accept and handle HTTP GET requests from any IP address.
Default
Blank
Web UI
Features > Remote Control > Action URI Allow IP List
Example: Capturing the Current Screen of the Phone
You can capture the screen display of the IP phone using the action URI. The phones can handle an HTTP or
HTTPS GET request. The URI format is http(s)://<phoneIPAddress>/screencapture. The captured picture is saved as
a BMP or JPEG file.
You can also use the URI “http(s)://<phoneIPAddress>/screencapture/download” to capture the screen display first,
and then download the image (which is saved as a JPG file and named with the phone model and the capture time)
to the local system.
Note: Yealink phones also support capturing the screen display using the old URI “http://<-
phoneIPAddress>/servlet?command=screenshot”.
Before capturing the phone’s current screen, ensure that the IP address of the computer is included in the trusted IP
address for Action URI on the phone. When you capture the screen display, the phone may prompt you to enter the
user name and password of the administrator if the web browser does not remember the user name and password
for web user interface login.
Procedure
1.
Enter request URI (for example, http://10.2.20.252/screencapture) in the browser's address bar and press the
Enter key on the keyboard.
2.
Do one of the following:
l If it is the first time you capture the phone’s current screen using the computer, the browser will display
“Remote control forbidden”, and the phone screen will prompt the message “Allow remote control?”.

Yealink SIP-T40G Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Wall mountable	Yes
Wi-Fi	No
Security algorithms	AES, HTTPS, SSL/TLS
Networking standards	IEEE 802.3af
Ethernet LAN interface type	Gigabit Ethernet
Supported network protocols	FTP, TFTP, HTTP, HTTPS
Voice codecs	G.711, G.711a, G.711u, G.722, G.726, G.729ab
RJ-11 ports quantity	1
Ethernet LAN (RJ-45) ports	2
AC adapter input voltage	100 - 240 V
AC adapter output current	0.6 A
AC adapter output voltage	5 V
Power consumption (typical)	1.6 W
Certification	CE, FCC, ISO 9001
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 90 %
Volume control	Digital
Display diagonal	2.3 \
Display resolution	132 x 64 pixels
Lines quantity	3 lines
Phonebook capacity	1000 entries
Number of VoIP accounts	3
Number of handles included	1 pc(s)

Weight and Dimensions

Depth	175 mm
Width	212 mm
Height	54 mm