Yealink SIP-T41S Administrator's Guide

Advanced Features
462
The uaCSTA feature on the phone may be used for remote control of the phone from computer applications such as
PC softphone. You can use the application to control the phone to perform basic call operations. For example,
place a call, answer a call, end a call and transfer a call to another party.
It is not applicable to T19(P) E2/CP920 phones.
Topic
CSTA Control Configuration
CSTA Control Configuration
The following table lists the parameter you can use to configure CSTA control.
Parameter
features.csta_control.enable
[1]
<y0000000000xx>.cfg
Description
It enables or disables the CSTA feature.
Permitted
Values
0-Disabled
1-Enabled
Default
0
Supported
Devices
All phones except T19(P) E2 and CP920
Web UI
Features > Remote Control > CSTA Control
[1]
If you change this parameter, the phone will reboot to make the change take effect.
Action URL
Action URL allows the phones to interact with web server applications by sending an HTTP or HTTPS GET request.
You can specify a URL that triggers a GET request when a specified event occurs. Action URL can only be
triggered by the predefined events (for example, Open DND). The valid URL format is: http(s)://<server-
IPAddress>/help.xml? .
An HTTP or HTTPS GET request may contain a variable name and a variable value, separated by “=”. Each vari-
able value starts with $ in the query part of the URL. The valid URL format is: http(s)://<server-
IPAddress>/help.xml?variable name=$variable value . The variable name can be customized by users, while the
variable value is predefined. For example, a URL “http://192.168.1.10/help.xml?mac=$mac” is specified for the
event Mute, the $mac will be dynamically replaced with the MAC address of the IP phone when the IP phone mutes
a call.
Topics
Predefined Events List
Variable Values List
Action URL Configuration
Predefined Events List
The following table lists the predefined events for action URL.
Event
Description
Setup Completed When the IP phone completes startup.
Registered When the IP phone successfully registers an account.
Unregistered When the IP phone logs out of the registered account.

Yealink SIP-T41S Specifications

General

Mounting	Desk/Wall
Handset type	Wired handset
Product type	IP Phone
Product color	Black
Keypad illumination	Yes
Wi-Fi	No
Networking standards	IEEE 802.3af
Ethernet LAN data rates	10, 100 Mbit/s
Ethernet LAN interface type	Fast Ethernet
Supported network protocols	SIP v1, SIP v2, LLDP/CDP/DHCP, OpenVPN, IEEE802.1X, IPv6, FTP/TFTP/HTTP/HTTPS
Volume control	Digital
Number of programmable keys	6
Lines quantity	6 lines
Phonebook capacity	1000 entries
Dual-Tone Multi-Frequency (DTMF) modes	In-band, Out-of band, SIP info
Input frequency	50/60 Hz
AC adapter input voltage	100 - 240 V
AC adapter output current	1.2 A
AC adapter output voltage	5 V
Display diagonal	2.7 \
Display resolution	192 x 64 pixels
Operating temperature (T-T)	-10 - 50 °C
Operating relative humidity (H-H)	10 - 95 %
Voice codecs	CNG, G.711Mu, G.711a, G.723.1, G.726, G.729ab, VAD, iLBC
Certification	CE
Cables included	LAN (RJ-45)
Number of handles included	1 pc(s)
Harmonized System (HS) code	85171800

Weight and Dimensions

Depth	189 mm
Width	212 mm
Height	175 mm
Package depth	223 mm
Package width	246 mm
Package height	120 mm