SEC FORM 3 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
 
OMB APPROVAL
OMB Number: 3235-0104
Estimated average burden
hours per response: 0.5
1. Name and Address of Reporting Person*
Nottenburg Richard N

(Last) (First) (Middle)
C/O SONUS NETWORKS, INC.
7 TECHNOLOGY PARK DRIVE

(Street)
WESTFORD MA 01886

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
06/13/2008
3. Issuer Name and Ticker or Trading Symbol
SONUS NETWORKS INC [ SONS ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
X Officer (give title below) Other (specify below)
CEO and President
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)
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:
Remarks:
Exhibit List: -- Exhibit 24 Power of Attorney
No securities are beneficially owned.
Charles J. Gray as Attorney-in-Fact for Richard N. Nottenburg 06/18/2008
** 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).
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.
Section 16 Power of Attorney



Know by all these presents, that the person whose signature appears below hereby constitutes and appoints

each of Charles J. Gray, Vice President and General Counsel and Colette Cooke, Assistant General

Counsel, of Sonus Networks, Inc. (the "Company") with full power of substitution, the undersigned's true

and lawful attorneys-in-fact to:



1. Execute for and on behalf of the undersigned, in the undersigned's capacity as an officer,

director and/or 10% shareholder of the Company, Forms 3, 4 and 5 in accordance with

Section 16(a) f the Securities Exchange Act of 1934 and rules there under;



2. 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 and timely file such form with

the United States Securities and Exchange Commission and any stock exchange or similar

authority; and



3. 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 interests of, or legally

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

attorneys-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 attorneys-in-fact may approve

in such attorneys-in-fact's reasonable discretion.



The undersigned hereby grants to the attorneys-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 intends 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 attorneys-in-fact 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 neither the attorneys-in-fact nor the

Company are assuming any of the undersigned's responsibilities to comply with Section 16 of the

Securities Exchange Act of 1934, as amended.



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 or until such attorneys-in-fact are no longer employed by 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 signed this 13th day of

June, 2008.



By  /s/ Richard N. Nottenburg



Name  Richard N. Notetnburg



Title:  CEO and President