<SEC-DOCUMENT>0001708055-21-000055.txt : 20210317
<SEC-HEADER>0001708055-21-000055.hdr.sgml : 20210317
<ACCEPTANCE-DATETIME>20210317192151
ACCESSION NUMBER:		0001708055-21-000055
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210315
FILED AS OF DATE:		20210317
DATE AS OF CHANGE:		20210317

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LOPEZ MIGUEL A
		CENTRAL INDEX KEY:			0001600024

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38267
		FILM NUMBER:		21752381

	MAIL ADDRESS:	
		STREET 1:		HARRIS CORPORATION
		STREET 2:		1025 W NASA BOULEVARD
		CITY:			MELBOURNE
		STATE:			FL
		ZIP:			32919

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:		6500 CHASE OAKS BOULEVARD
		CITY:			PLANO
		STATE:			TX
		ZIP:			75023
		BUSINESS PHONE:		877-412-8867

	MAIL ADDRESS:	
		STREET 1:		6500 CHASE OAKS BOULEVARD
		CITY:			PLANO
		STATE:			TX
		ZIP:			75023

	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>
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<TYPE>4
<SEQUENCE>1
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    <documentType>4</documentType>

    <periodOfReport>2021-03-15</periodOfReport>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001600024</rptOwnerCik>
            <rptOwnerName>LOPEZ MIGUEL A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RIBBON COMMUNICATIONS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>6500 CHASE OAKS BOULEVARD, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>PLANO</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>75023</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP and CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Units (RSUs)</value>
            </securityTitle>
            <conversionOrExercisePrice>
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            <transactionDate>
                <value>2021-03-15</value>
            </transactionDate>
            <transactionCoding>
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            <transactionAmounts>
                <transactionShares>
                    <value>53764</value>
                </transactionShares>
                <transactionPricePerShare>
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                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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            <expirationDate>
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                <underlyingSecurityTitle>
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            <postTransactionAmounts>
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            <transactionAmounts>
                <transactionShares>
                    <value>53764</value>
                </transactionShares>
                <transactionPricePerShare>
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            <underlyingSecurity>
                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
                    <value>53764</value>
                </underlyingSecurityShares>
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                    <value>53764</value>
                </sharesOwnedFollowingTransaction>
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                </directOrIndirectOwnership>
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        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>PSUs</value>
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            <conversionOrExercisePrice>
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            <transactionDate>
                <value>2021-03-15</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>32259</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
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                    <value>32259</value>
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                <value>PSUs</value>
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                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>21505</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
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                <underlyingSecurityTitle>
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                <underlyingSecurityShares>
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    </derivativeTable>

    <footnotes>
        <footnote id="F1">Each RSU represents a contingent right to receive one share of the Issuer's common stock.</footnote>
        <footnote id="F2">The RSUs will vest as to one-third on March 15, 2022 and the remaining two-thirds of the RSUs will vest in four equal semi-annual installments thereafter through March 15, 2024.</footnote>
        <footnote id="F3">Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on achievement of a revenue goal set by the Compensation Committee  of the Issuer's Board of Directors (the &quot;Compensation Committee&quot;) for the fiscal year ending December 31, 2021.  The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 3/15/2022.</footnote>
        <footnote id="F4">Each PSU represents a contingent right to receive one share of the Issuer's Common Stock. The number of PSUs earned and issuable upon vesting will be determined based on goals set by the Compensation Committee on an annual basis for each of the three fiscal years prior to the vesting date.  The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 3/15/2024.</footnote>
        <footnote id="F5">Each PSU represents a contingent right to receive one share of the Issuer's Common Stock, based on the Issuer's total shareholder return (TSR) compared to pre-established relative TSR goals, based on the TSR of a peer index of companies set by the Compensation Committee over the three fiscal years ending prior to the vesting date. The aggregate number of shares issued may range from zero shares to 200% of the target number of shares reported in columns 5, 7 and 9 of Table II. The number of PSUs reported in columns 5, 7 and 9 of Table II reflects achievement at the target level of performance. This PSU will vest on 3/15/2024.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Patrick Macken, Attorney-in-Fact</signatureName>
        <signatureDate>2021-03-17</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
