-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 sRETnPPC5OraaKrHpKWHpw==

<SEC-DOCUMENT>0001204459-06-000864.txt : 20060929
<SEC-HEADER>0001204459-06-000864.hdr.sgml : 20060929
<ACCEPTANCE-DATETIME>20060929154622
ACCESSION NUMBER:		0001204459-06-000864
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060929
FILED AS OF DATE:		20060929
DATE AS OF CHANGE:		20060929

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:			BIDERMAN ABRAHAM
		CENTRAL INDEX KEY:			0001129924

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-30202
		FILM NUMBER:		061117288

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		2038312242

	MAIL ADDRESS:	
		STREET 1:		C/O LIPPER & CO
		STREET 2:		101 PARK AVE 6TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10179
</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>2006-09-29</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001129924</rptOwnerCik>
            <rptOwnerName>BIDERMAN ABRAHAM</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O LIPPER &amp; CO</rptOwnerStreet1>
            <rptOwnerStreet2>101 PARK AVE 6TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10179</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2006-09-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.165</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1602733</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Shares</value>
            </securityTitle>
            <transactionDate>
                <value>2006-09-29</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>15000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.163</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1617733</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <ownerSignature>
        <signatureName>Abraham Biderman</signatureName>
        <signatureDate>2006-09-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----