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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 /SZDMixKdWEWckn/zZj3vw==

<SEC-DOCUMENT>0001204459-05-000530.txt : 20050919
<SEC-HEADER>0001204459-05-000530.hdr.sgml : 20050919
<ACCEPTANCE-DATETIME>20050919140202
ACCESSION NUMBER:		0001204459-05-000530
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050916
FILED AS OF DATE:		20050919
DATE AS OF CHANGE:		20050919

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MPHASE TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000825322
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-TELEPHONE INTERCONNECT SYSTEMS [7385]
		IRS NUMBER:				222287503
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		587 CONNECTICUT AVE
		STREET 2:		PO BOX 566
		CITY:			NORWALK
		STATE:			CT
		ZIP:			06854
		BUSINESS PHONE:		2038312212

	MAIL ADDRESS:	
		STREET 1:		587 CONNECTICUT AVE
		STREET 2:		PO BOX 566
		CITY:			NORWALK
		STATE:			CT
		ZIP:			06854

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	TECMA LABORATORIES INC
		DATE OF NAME CHANGE:	19980915

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			DURANDO RONALD A
		CENTRAL INDEX KEY:			0001096217

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30202
		FILM NUMBER:		051090933

	BUSINESS ADDRESS:	
		STREET 1:		587 CONNECTICUT AVE
		CITY:			NORWALK
		STATE:			CT
		ZIP:			06854
		BUSINESS PHONE:		2039382741

	MAIL ADDRESS:	
		STREET 1:		43 ALEXANDER AVE
		CITY:			NUTLEY
		STATE:			NJ
		ZIP:			07110
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-09-16</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000825322</issuerCik>
        <issuerName>MPHASE TECHNOLOGIES INC</issuerName>
        <issuerTradingSymbol>XDSL</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001096217</rptOwnerCik>
            <rptOwnerName>DURANDO RONALD A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>43 ALEXANDER AVE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NUTLEY</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>07110</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>20000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.236</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21726405</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2005-09-16</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>1200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.232</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>21727605</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Ronald A. Durando</signatureName>
        <signatureDate>2005-09-19</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----