Using SOAP for RPC

Request:

<env:Envelope xmlns:env="http://www.w3.org/2001/09/soap-envelope">
  <env:Body>
    <m:IncreaseTemperature xmlns:m="http://example.org/setTemperature">
      <building>NE43</building>
      <room>344</room>
      <variation>+5</variation>
    </m:IncreaseTemperature>
  </env:Body>
</env:Envelope>    

Response:

<env:Envelope xmlns:env="http://www.w3.org/2001/09/soap-envelope">
  <env:Body>
    <m:IncreaseTemperatureResponse xmlns:m="http://example.org/setTemperature">
      <rpc:result xmlns:rpc="http://www.w3.org/2001/09/soap-rpc">
        <status>OK</status>
        <temperature>78</temperature>
      </rpc:result>
    </m:IncreaseTemperatureResponse>
  </env:Body>
</env:Envelope>