curl -v -X POST http://192.168.1.9:55000/nrc/control_0 \
  -H "Content-Type: text/xml; charset=utf-8" \
  -H "SOAPAction: \"urn:panasonic-com:service:p00NetworkControl:1#X_SendKey\"" \
  --data '<?xml version="1.0" encoding="utf-8"?>
<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"
 s:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/">
 <s:Body>
  <u:X_SendKey xmlns:u="urn:panasonic-com:service:p00NetworkControl:1">
   <X_KeyEvent>NRC_VOLUP-ONOFF</X_KeyEvent>
  </u:X_SendKey>
 </s:Body>
</s:Envelope>'