JSON_Cap_CallCfg

JSON message about the configuration capability of the nametag module

{
  "CallCfg": {
    "KeyBindings": {
      "maxSize": 20, 
/*maximum number of buttons, which can be same as the maximum number of nametag modules*/
      "roomNumber": {
/*required, integer type, room No., which is valid only for nametag module*/
        "@min": 1,
        "@max": 65535
      },
      "buttonNumber": {     
/*required, integer type, button No., which is valid only for nametag module*/
        "@min": 1,
        "@max": 16
      },
      "callNumber": {
/*optional, string type, call number, which is valid only for nametag module; if this node is not supported, it will not be returned*/
        "@min": ,
        "@max": 
      }
    }
  }
}