POST /fax/v5 HTTP/1.1 
Authorization: Bearer {AccessToken}
Content-Type: "application/soap+xml; charset=utf-8"
Content-Length: length
x-ch-request-id: "{optional unique identifier}"
SOAPAction: ""

<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
            xmlns="urn:FaxWS">
    <soap:Header/>
    <soap:Body>
        <SendFax>
            <UserID>string</UserID>
            <strPIN></strPIN>
            <Recipients>
                <!--One or more repetitions:-->
                <item>
                    <RecipFaxNumber>string</RecipFaxNumber>
                    <RecipCompany>string</RecipCompany>
                    <RecipTitle>string</RecipTitle>
                    <RecipName>string</RecipName>
                    <RecipSecureCSID>string</RecipSecureCSID>
                </item>
            </Recipients>
            <FaxJobFiles>
                <!--One or more repetitions:-->
                <item>
                    <FileIndex>int</FileIndex>
                    <FileTypeId>int</FileTypeId>
                    <FileData>base64Binary</FileData>
                </item>
            </FaxJobFiles>
        </SendFax>
    </soap:Body>
</soap:Envelope>

POST /fax/v5 HTTP/1.1 
Content-Type: "application/soap+xml; charset=utf-8"
Content-Length: length
x-ch-request-id: "{optional unique identifier}"
SOAPAction: ""

<?xml version="1.0" encoding="UTF-8"?>
<soap:Envelope xmlns:soap="http://schemas.xmlsoap.org/soap/envelope/" 
            xmlns="urn:FaxWS">
    <soap:Header/>
    <soap:Body>
        <SendFax>
            <UserID>string</UserID>
            <strPIN>string</strPIN>
            <Recipients>
                <!--One or more repetitions:-->
                <item>
                    <RecipFaxNumber>string</RecipFaxNumber>
                    <RecipCompany>string</RecipCompany>
                    <RecipTitle>string</RecipTitle>
                    <RecipName>string</RecipName>
                    <RecipSecureCSID>string</RecipSecureCSID>
                </item>
            </Recipients>
            <FaxJobFiles>
                <!--One or more repetitions:-->
                <item>
                    <FileIndex>int</FileIndex>
                    <FileTypeId>int</FileTypeId>
                    <FileData>base64Binary</FileData>
                </item>
            </FaxJobFiles>
        </SendFax>
    </soap:Body>
</soap:Envelope>