Yealink SIP-T27P [543/841] Http https get request

Configuring Advanced Features

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2. Enter the action URLs in the corresponding fields.

3. Click Confirm to accept the change.

HTTP/HTTPS GET Request

Opposite to action URL, action URI allows IP phones to interact with web server

application by receiving and handling an HTTP or HTTPS GET request. When receiving a

GET request, the IP phone will perform the specified action and respond with a 200 OK

message. A GET request may contain variable named as “key” and variable value,

which are separated by “=”. The valid URI format is: http(s)://phone IP

address/servlet?key=variable value. For example: http://10.3.20.10/servlet?key=OK.

SIP Notify Message

In addition, Yealink IP phones support performing the specified action immediately by

accepting a SIP NOTIFY message with the “Event: ACTION-URI” header from a SIP

proxy server. The message body of the SIP NOTIFY message may contain variable

named as “key” and variable value, which are separated by “=”.

This method is especially useful for users always working in the small office/home office

where a secure firewall may prevent the HTTP or HTTPS GET request from the external

network.

Note

If you want to only accept the SIP NOTIFY message from your SIP server and outbound

proxy server, you have to enable the Accept SIP Trust Server Only feature. For more

information, refer to Accept SIP Trust Server Only on page 240.