Procedure
Step 1 Select Voice > Phone.
Step 2 Go to the WebSocket API section.
Step 3 Set the Control Server URL and the Allowed APIs fields as described in the WebSocket API Parameters,
on page 226 table.
Step 4 Click Submit All Changes.
WebSocket API Parameters
The following table defines the function and usage of each parameter in the WebSocket API section in the
Voice > Phone tab of the phone web page. It also defines the syntax of the string that is added in the phone
configuration file with XML (cfg.xml) code to configure a parameter.
Description and Default ValueParameter Name
The URL of a WebSocket server to which the phone
attempts to stay connected.
• In the phone configuration file with XML
(cfg.xml) enter a string in this format.
<Control_Server_URL ua="na"/>
• In the phone web page enter the URL of a
WebSocket server.
For example:
<Control_Server_URL>wss://my-server.com
/ws-server-path</Control_Server_URL>
The URL should be in one of the following formats:
• For a nonsecure HTTP connection:
ws://your-server-name/path
• For a secure HTTPS connection:
wss://your-server-name/some-path
We recommend a secure connection.
Default: Empty.
Control Server URL
Cisco IP Phone 8800 Series Multiplatform Phone Administration Guide for Release 11.3(1) and Later
226
Cisco IP Phone Configuration
WebSocket API Parameters
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