Message about the configuration capability of pressing the button to call in XML format.
<KeyCfg version="2.0" xmlns="http://www.isapi.org/ver20/XMLSchema"> <id min="" max=""><!--required, xs:integer, button No. which corresponds to the <ID> in the request URI /ISAPI/VideoIntercom/keyCfg/<ID>/capabilities--></id> <module opt="main,sub"><!--optional, xs:string, module to be configured: "main"-main module (default), "sub"-sub module--></module> <moduleId min="" max=""><!--dependent, xs:integer, sub module ID, this node is valid when <module> is "sub" and is used to specify that the button information of which module will be configured--></moduleId> <callNumber min="" max=""><!--optional, xs:string, called number--></callNumber> <enableCallCenter opt="true,false"><!--optional, xs:boolean, whether to call the management center--></enableCallCenter> <callMethod opt=" callNumber,manageCenter,app"><!--optional, xs:string, calling method: "callNumber"-call by number, "manageCenter"-call the management center, "app"-call APP, "manualCallNumber"-manually call by number. The empty string is invalid, and if this node is configured, the node <enableCallCenter> is not required--></callMethod> </KeyCfg>