Yealink SIP-T19 E2 T4 Series, Administrator'S Manual

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Configuring Advanced Features
645
Yealink IP phones also support a combination of the variable values in the URI, but the order of
the variable value is determined by the operation of the phone. The valid URI format is:
http(s)://<phoneIPAddress>/servlet?key=variable value[;variable value]
. Variable values are
separated by a semicolon from each other. This method is not applicable to SIP-T48G/S IP
phones.
The following shows an example for deleting all entries from the call history list when the phone
is idle:
http://
10.3.20.10/s
ervlet?key=F1;F3;DOWN;DOWN;DOWN;OK;OK.
Configuring Trusted IP Address for Action URI
For security reasons, IP phones do not handle HTTP/HTTPS GET requests by default. You need to
specify the trusted IP address for action URI. When the IP phone receives a GET request from the
trusted IP address for the first time, the LCD screen prompts the message “Allow remote
control?”. Press the
OK
soft key on the phone to allow remote control. You can specify one or
more trusted IP addresses on the IP phone, or configure the IP phone to receive and handle the
URI from any IP address.
If you are using SIP NOTIFY message method, you do not need to specify the trusted IP address
for action URI. But you should enable the IP phone to receive the action URI requests. When the
IP phone receives a SIP NOTIFY message with the “Event: ACTION-URI” header from a SIP proxy
server for the first time, the LCD screen also prompts the message “Allow remote control?”.
You can use action URI feature to capture the phone’s current screen. For more information,
refer to
Scenario A - Capturing the Current Screen of the Phone on page 648 .
Procedure
Specify the trusted IP address for action URI using the following methods.
Central
Provisioning
(Configuration
File)
<y0000000000xx>.cfg
Configure the IP phone to receive the
action URI requests.
Parameter:
features.action_uri.enable
Configure the IP phone to pop up the
Allow Remote Control prompt.
Parameter:
features.show_action_uri_option
Specify the trusted IP address(es) for
sending the action URI to the IP
phone.
Parameter:
features.action_uri_limit_ip