[ES] – Header HTTP y envoltura SOAP

Esto es común a todos los pedidos:

POST /api.php HTTP/1.0
User-Agent: NuSOAP/0.6.3
Host: localhost
Content-Type: text/xml; charset="(ISO-8859-1|UTF-8)"
SOAPAction: ""
<?xml version="1.0" encoding="(ISO-8859-1|UTF-8)"?>
<SOAP-ENV:Envelope SOAP-ENV:encodingStyle="http://schemas.xmlsoap.org/soap/encoding/"
   xmlns:SOAP-ENV="http://schemas.xmlsoap.org/soap/envelope/"
   xmlns:xsd="http://www.w3.org/2001/XMLSchema"
   xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
   xmlns:SOAP-ENC="http://schemas.xmlsoap.org/soap/encoding/">
<SOAP-ENV:Body>