SEC Form 3

FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person* ECI Holding (Hungary) Kft. (Last) (First) (Middle) DOHANY UTCA 12 (Street) BUDAPEST K5 H-1704 (City) (State) (Zip)	2. Date of Event Requiring Statement (Month/Day/Year) 03/03/2020	3. Issuer Name and Ticker or Trading Symbol Ribbon Communications Inc. [ RBBN ]
		4. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)	5. If Amendment, Date of Original Filed (Month/Day/Year)
			6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	25,796,395	D(1)

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents 25,796,395 shares of common stock, par value $0.0001 per share, of Ribbon Communications Inc. ("Common Stock") pursuant to that certain Agreement and Plan of Merger, dated as of November 14, 2019 (the "Merger Agreement"), 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.

	/s/ Suzanne Hart, Attila Urbanovics - Managing Directors	03/12/2020
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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