GetStatus using HTTP request

Hello,
how I can get status of SwitchPower using HTTP request? “action=GetStatus” recived “ERROR: Device does not handle service/action”

Refer to:
http://wiki.micasaverde.com/index.php/Luup_Requests#status

http://VERAIP:3480/data_request?id=variableget&DeviceNum=DEVICE_NUM&serviceId=urn:upnp-org:serviceId:SwitchPower1&Variable=Status

Replace VERAIP and DEVICE_NUM as appropriate.