<SEC-DOCUMENT>0000950103-20-005185.txt : 20200312
<SEC-HEADER>0000950103-20-005185.hdr.sgml : 20200312
<ACCEPTANCE-DATETIME>20200312172253
ACCESSION NUMBER:		0000950103-20-005185
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200303
FILED AS OF DATE:		20200312
DATE AS OF CHANGE:		20200312

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ECI Holding (Hungary) Kft.
		CENTRAL INDEX KEY:			0001805605
		STATE OF INCORPORATION:			K5
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38267
		FILM NUMBER:		20709842

	BUSINESS ADDRESS:	
		STREET 1:		DOHANY UTCA 12
		CITY:			BUDAPEST
		STATE:			K5
		ZIP:			H-1704
		BUSINESS PHONE:		36 1 328 6800

	MAIL ADDRESS:	
		STREET 1:		DOHANY UTCA 12
		CITY:			BUDAPEST
		STATE:			K5
		ZIP:			H-1704

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Ribbon Communications Inc.
		CENTRAL INDEX KEY:			0001708055
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMPUTER INTEGRATED SYSTEMS DESIGN [7373]
		IRS NUMBER:				821669692
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		4 TECHNOLOGY PARK DRIVE
		CITY:			WESTFORD
		STATE:			MA
		ZIP:			01886
		BUSINESS PHONE:		978-614-8090

	MAIL ADDRESS:	
		STREET 1:		4 TECHNOLOGY PARK DRIVE
		CITY:			WESTFORD
		STATE:			MA
		ZIP:			01886

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Sonus Networks, Inc.
		DATE OF NAME CHANGE:	20171027

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Solstice Sapphire Investments, Inc.
		DATE OF NAME CHANGE:	20170531
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>dp123794_3-eci.xml
<DESCRIPTION>FORM 3
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2020-03-03</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001708055</issuerCik>
        <issuerName>Ribbon Communications Inc.</issuerName>
        <issuerTradingSymbol>RBBN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001805605</rptOwnerCik>
            <rptOwnerName>ECI Holding (Hungary) Kft.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>DOHANY UTCA 12</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>BUDAPEST</rptOwnerCity>
            <rptOwnerState>K5</rptOwnerState>
            <rptOwnerZipCode>H-1704</rptOwnerZipCode>
            <rptOwnerStateDescription>HUNGARY</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25796395</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F1"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents 25,796,395 shares of common stock, par value $0.0001 per share, of Ribbon Communications Inc. (&quot;Common Stock&quot;) pursuant to that
certain Agreement and Plan of Merger, dated as of November 14, 2019 (the &quot;Merger Agreement&quot;), by and among Ribbon Communications Inc., Ribbon
Communications Israel Ltd., Eclipse Communications Ltd., ECI Telecom Group Ltd. and the Reporting Person. Of the 25,796,395 shares of Common
Stock, 1,454,545 are held in an escrow and are subject to forfeiture during a period of up to five years following the closing of the transactions
contemplated by the Merger Agreement to satisfy certain potential liabilities under the Merger Agreement. The transactions contemplated by the Merger
Agreement were consummated on March 3, 2020, at which time the shares of Common Stock were issued to the Reporting Person.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Suzanne Hart, Attila Urbanovics - Managing Directors</signatureName>
        <signatureDate>2020-03-12</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
