Washington, D.C. 20549


Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
OMB Number: 3235-0287
Estimated average burden
hours per response: 0.5
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
1. Name and Address of Reporting Person*
McClelland Bruce William

(Last) (First) (Middle)


(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
Ribbon Communications Inc. [ RBBN ]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
President & CEO
3. Date of Earliest Transaction (Month/Day/Year)
4. 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 Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 08/10/2020 P 10,000 A $4.4528(1) 95,575 D
Common Stock 08/11/2020 P 12 A $4.39 95,587 D
Common Stock 08/12/2020 P 9,988 A $4.39 105,575 D
Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 6. Date Exercisable and Expiration Date (Month/Day/Year) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Explanation of Responses:
1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $4.41 to $4.46, inclusive. The reporting person undertakes to provide to Ribbon, any security holder of Ribbon, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares purchased at each separate price with the ranges set forth in this footnote.
Patrick Macken, Attorney-in-Fact 08/12/2020
** 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 4 (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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
          EXHIBIT 24

                                      POWER OF ATTORNEY

     Know all by these presents, that the undersigned hereby makes, constitutes and appoints

Patrick Macken as the undersigned's true and lawful attorney-in-fact (the "Attorney-in-Fact"),

with full power to act for the undersigned and in the undersigned's name, place and stead, in

any and all capacities, to:

(1)   prepare, execute in the undersigned's name and on the undersigned's behalf, and submit

to the U.S. Securities and Exchange Commission (the "SEC") Form ID, including amendments

thereto, and any other documents necessary or appropriate to obtain codes and passwords

enabling the undersigned to make electronic filings with the SEC of reports required by

Section 16(a) of the Securities Exchange Act of 1934 (the "Act") or any rule or regulation

of the SEC;

(2)   execute for and on behalf of the undersigned, in the undersigned's capacity as an officer

and director of Ribbon Communications Inc. (the "Company"), Forms 3, 4, and 5 in accordance

with Section 16(a) of the Act and the rules thereunder, and any other forms or reports the

undersigned may be required to file in connection with the undersigned's ownership, acquisition,

or disposition of securities of the Company;

(3)   do and perform any and all acts for and on behalf of the undersigned which may be necessary

or desirable to complete and execute any such Form 3, 4, or 5, or other form or report, and

timely file such form or report with the SEC and any stock exchange or similar authority; and

(4)   take any other action of any type whatsoever in connection with the foregoing which, in

the opinion of such Attorney-in-Fact, may be of benefit to, in the best interest of, or legally

required by, the undersigned, it being understood that the documents executed by such

Attorney-in-Fact on behalf of the undersigned pursuant to this Power of Attorney shall be in

such form and shall contain such terms and conditions as such Attorney-in-Fact may approve in

such Attorney-in-Fact's discretion.

     The undersigned hereby grants to such Attorney-in-Fact full power and authority to do and

perform any and every act and thing whatsoever requisite, necessary, or proper to be done in

the exercise of any of the rights and powers herein granted, as fully to all intents and purposes

as the undersigned might or could do if personally present, with full power of substitution or

revocation, hereby ratifying and confirming all that such Attorney-in-Fact, or such Attorney-in-

Fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power

of attorney and the rights and powers herein granted. The undersigned acknowledges that the

foregoing Attorney-in-Fact, in serving in such capacity at the request of the undersigned, is

not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply

with Section 16 of the Act. This Power of Attorney shall remain in full force and effect until

the undersigned is no longer required to file Forms 3, 4, and 5 with respect to the undersigned's

holdings of and transactions in securities issued by the Company, unless earlier revoked by the

undersigned in a signed writing delivered to the foregoing Attorney-in-Fact.

      IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as

of this 12th day of August, 2020.

/S/ Bruce McClelland


Bruce McClelland