<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0203</schemaVersion>

    <documentType>3/A</documentType>

    <periodOfReport>2010-06-15</periodOfReport>

    <dateOfOriginalSubmission>2010-06-15</dateOfOriginalSubmission>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001086909</issuerCik>
        <issuerName>BROADSOFT INC</issuerName>
        <issuerTradingSymbol>BSFT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396226</rptOwnerCik>
            <rptOwnerName>Charles River Partnership IX, a limited partnership</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 WINTER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396225</rptOwnerCik>
            <rptOwnerName>Charles River Partnership IX-A, a limited partnership</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 WINTER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396224</rptOwnerCik>
            <rptOwnerName>Charles River IX-B, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 WINTER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396223</rptOwnerCik>
            <rptOwnerName>Charles River IX-C, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 WINTER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396222</rptOwnerCik>
            <rptOwnerName>Charles River IX GP Limited Partnership</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 WINTER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396221</rptOwnerCik>
            <rptOwnerName>Charles River Friends, Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1000 WINTER STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 3300</rptOwnerStreet2>
            <rptOwnerCity>WALTHAM</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02451</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Series A Preferred Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2400000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares were omitted from the reporting persons' original Form 3.  Includes 2,223,328 shares held by Charles River Partnership IX, LP (&quot;CRP IX&quot;), 68,112 shares held by Charles River Partnership IX-A, LP (&quot;CRP IX-A&quot;), 60,906 shares held by Charles River IX-B, LLC (&quot;CR IX-B&quot;) and 47,654 shares held by Charles River IX-C, LLC (&quot;CR IX-C&quot;).  CRP IX, CRP IX-A, CR IX-B and CR IX-C form a &quot;group&quot; for purposes of Section 13(d) of the Securities Exchange Act of 1934.  Effective upon the closing of the issuer's initial public offering, each share of Series A Preferred Stock will be redeemed for $0.48 per share and subsequently cancelled.  The Series A Preferred Stock has no expiration date.</footnote>
        <footnote id="F2">Charles River IX GP, Limited Partnership (&quot;CR IX GP&quot;) is the General Partner of CRP IX and CRP IX-A; Charles River Friends, Inc. (&quot;CRF Inc.&quot;) is the manager of CR IX-B and CR IX-C.  Accordingly, each of CR IX GP and CRF Inc. (collectively, the &quot;GPs&quot;) may be deemed to beneficially own the reported securities indirectly, but each of the GPs disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein. The filing of this statement by any reporting person shall not be deemed an admission that such person is, for purposes of Section 16 of the Securities Exchange Act of 1934 or otherwise, the beneficial owner of any equity securities covered by this statement.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Sarah Reed as Attorney-in-Fact for Charles River IX GP, LP the general partner of Charles River Partnership IX, LP</signatureName>
        <signatureDate>2010-06-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Sarah Reed as Attorney-in-Fact for Charles River IX GP, LP the general partner of Charles River Partnership IX-A, LP</signatureName>
        <signatureDate>2010-06-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Sarah Reed as Attorney-in-Fact for Charles River Friends, Inc. the manager of Charles River IX-B, LLC</signatureName>
        <signatureDate>2010-06-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Sarah Reed as Attorney-in-Fact for Charles River Friends, Inc. the manager of Charles River IX-C, LLC</signatureName>
        <signatureDate>2010-06-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Sarah Reed as Attorney-in-Fact for Charles River IX GP, LP</signatureName>
        <signatureDate>2010-06-17</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Sarah Reed as Attorney-in-Fact for Charles River Friends, Inc.</signatureName>
        <signatureDate>2010-06-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
