Yealink SIP-T21 E2

Administrator’s Guide for SIP-T2 Series/T19(P) E2/T4 Series/T5 Series/CP860/CP920 IP Phones
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Parameter
Permitted Values
Default
1-Enabled
Note: It is only applicable to CP860/CP920 IP phones. It works only if the value of the
parameter “features.usb_call_recording.enable” is set to 1 (Enabled).
Web User Interface:
None
Phone User Interface:
None
CSTA Control
User Agent Computer Supported Telecommunications Applications (uaCSTA) is explained in
detail in Using CSTA for SIP Phone User Agents (uaCSTA) and Services for Computer Supported
Telecommunications Applications Phase III.
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 SIP-T19(P) E2/CP860 IP phones.
Procedure
The uaCSTA feature can be configured using the following methods.
Central Provisioning
(Configuration File)
<y0000000000xx>.cfg
Configure uaCSTA feature.
Parameter:
features.csta_control.enable
Web User Interface
Configure uaCSTA feature.
Navigate to:
http://<phoneIPAddress>/servlet?p=f
eatures-remotecontrl&q=load
Details of the Configuration Parameter:
Parameter
Permitted Values
Default
features.csta_control.enable
0 or 1
0
Description:
Enables or disables the uaCSTA (User Agent Computer Supported Telecommunications