A question about "soap:fault"

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SOAP

Hi, all

I am developing ONVIF application base on gSOAP.
When I try to pull event from IPCAMs, some problems appeared.

I called CreatePullPointSubscription to subscript events from IPCAM, then I called PullMessages along with the entry point provided by previous CreatePullPointSubscription call.

Unfortunately, IPCAM returned a PullMessagesFaultResponse to indicate me MaxMessageLimit is too large to accept.

Here is the SOAP message:

<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope
    xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
    xmlns:xs="http://www.w3.org/2000/10/XMLSchema"
    xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"
    xmlns:tt="http://www.onvif.org/ver10/schema"
    xmlns:wsa="http://www.w3.org/2005/08/addressing"
    xmlns:wsaw="http://www.w3.org/2006/05/addressing/wsdl"
    xmlns:wsnt="http://docs.oasis-open.org/wsn/b-2"
    xmlns:tet="http://www.onvif.org/ver10/events/wsdl">
    <soap:Body>
        <tet:PullMessagesFaultResponse>
            <tet:MaxTimeout>
            </tet:MaxTimeout>
            <tet:MaxMessageLimit>
                10
            </tet:MaxMessageLimit>
        </tet:PullMessagesFaultResponse>
    </soap:Body>
</soap:Envelope>

gSOAP failed to parse the message correctly (Fill the details member of soap structure) but told me we just got a "XML tag 'PullMessagesFaultResponse' is mismatch" error. (The formal response excepts "PullMessageResponse" tag, not "PullMessageFaultResponse" tag) Obviously either the Message is not well-formed or I missed something.

Can any one help me?