Exhibit

1. Position. You will be employed as Vice President of Engineering and Chief Technical Officer, reporting to the President and Chief Executive Officer (the “CEO”). As the Company’s organization evolves, in addition to performing duties and responsibilities currently associated with these positions, you may be assigned other executive duties and responsibilities as the Company may determine. As a full-time employee of the Company, you will be expected to devote your full business time and energies to the business and affairs of the Company.

(a) Base Compensation. Your initial base salary (“Base Salary”) will be at the annualized rate of $275,000, less applicable state and federal withholdings, paid twice monthly in accordance with the Company’s normal payroll practices. The Company will review your Base Salary on an annual basis and such Base Salary may be adjusted at the discretion of the Compensation Committee of the Board of Directors (the “Compensation Committee”); provided that you may elect to terminate your employment for Good Reason (as defined below) if the Compensation Committee reduces your Base Salary without your consent.

(b) Target Bonus. Commencing with the 2014 fiscal year, you will be eligible to participate in the Senior Management Cash Incentive Plan (or its successor) during each year you are employed by the Company, with a target bonus of 50% of your then-current annual Base Salary (“Target Bonus”). Specific objectives for your Target Bonus will be agreed upon with the CEO on or after January 1 of each year with respect to an award for such year. Your annual bonus, if earned, shall be paid as soon as practicable following the Company’s public disclosure of its financial results for the applicable bonus year, but in no event later than April 15 of each such subsequent year. For 2014, your Target Bonus, if earned, will be paid in accordance with your cash-for-stock election dated December 27, 2013.

(c) Acquisition. In the event of an Acquisition (as defined below), (i) 50% of all unvested options granted to you to purchase the Company’s common stock will vest immediately upon the date of the Acquisition, and the remaining unvested options granted to you will continue to vest according to their terms; and (ii) 50% of all restricted shares granted to you will vest immediately upon the date of Acquisition and the remaining unvested restricted shares will continue to vest according to their terms.

(b) You will be entitled to participate as an employee of the Company in all benefit plans, fringe benefits and perquisites generally provided to employees of the Company in accordance with Company policy as in effect from time to time. Company benefits currently include group health, life and dental insurance, 401(k) program and equity incentive plans. The Company retains the right to change, add or cease any particular benefit for its employees.

(c) The Company will reimburse you for all reasonable travel, business development, meals, entertainment and other expenses incurred by you in connection with the performance of your duties and obligations on behalf of the Company. You will comply with such limitations and reporting requirements with respect to expenses as may be established by the Company from time to time and will promptly provide all appropriate and requested documentation in connection with such expenses.

5. Confidentiality. The Company considers the protection of its confidential information, proprietary materials and goodwill to be very important. You are, and will remain, subject to the terms of the Confidentiality, Non-Competition and Assignment of Inventions Agreement (“Confidentiality Agreement”) that you signed previously in connection with your employment with the Company.

7. Termination and Eligibility for Severance. Upon any termination of your employment (the “Date of Termination”), you will be paid (i) any and all earned and unpaid portion of your Base Salary through the Date of Termination; (ii) any accrued but unused vacation pay owed to you in accordance with Company practices up to and including the Date of Termination; and (iii) any allowable and unreimbursed business expense incurred through the Date of Termination that are supported by appropriate documentation in accordance with the Company’s policies. Hereafter, items (i) through (iii) in this Section 7 are referred to as “Accrued Benefits.” If the Company terminates your employment for Cause (as defined below) or you terminate your employment without Good Reason (as defined below), you will be entitled to receive only the Accrued Benefits.

If the Company terminates your employment without Cause, your employment terminates due to your death or Disability (as defined below), or you terminate your employment with Good Reason, then subject to the additional conditions of this Agreement, the Company will provide you (or your estate or successors or assigns, as the case may be) with the following severance and related post-termination benefits, to which you otherwise would not be entitled:

(b) The Company will continue to pay the Company’s share of medical, dental and vision insurance premiums for you and your dependents for the twelve (12) month period following the termination of your employment; provided, that if your termination occurs in contemplation of, upon or after an Acquisition, the Company will continue to pay the Company’s share of medical, dental and vision insurance premiums for you and your dependents for the eighteen (18) month period following the termination of your employment. In any case, if, immediately prior to the termination of your employment you were required to contribute towards the cost of such premiums as a condition of receiving such insurance, you may be required to continue contributing towards the cost of such premiums under the same terms and conditions in order to receive such continued insurance coverage.

(c) Any options granted to you by the Company to purchase the Company’s common stock that are unvested as of the Date of Termination and would have vested in the twelve (12) months following your termination will accelerate and immediately vest and become exercisable upon termination, and your options that are or become vested will remain outstanding and exercisable for the shorter of three (3) years following your Date of Termination or the original remaining life of such options; provided that if your termination occurs in contemplation of, upon or after an Acquisition, then all unvested options at that time will accelerate and immediately vest and become exercisable.

(d) Any restricted shares granted to you by the Company that are unvested as of the Date of Termination and that would vest during the twelve (12) months following your termination will accelerate and immediately vest upon termination, and such shares will be freely marketable; provided that if your termination occurs in contemplation of, upon or after an Acquisition, then all of your unvested restricted shares at that time will fully accelerate, immediately vest upon termination and be freely marketable.

(e) The Company’s provision of the benefits described in Section 7(a), (b), (c) and (d) above shall be contingent upon (y) your execution and delivery of a release of all claims of any kind or nature in favor of the Company in a form to be provided by the Company (the “Release Agreement”), and on such Release Agreement becoming effective as a matter of law; and (z) your compliance and continuing compliance with the covenants in your Confidentiality Agreement. The payment described in Section 7(a) above shall be made promptly following the Company’s receipt of the executed Release Agreement and the expiration of any revocation period described in the Release Agreement. The Company shall have no further obligation to you in the event your employment with the Company terminates at any time, other than those obligations specifically set forth in this Section 7.

(f) The Company may terminate your employment at any time with or without Cause by written notice to you specifying the Date of Termination. You may terminate your employment with or without Good Reason by providing written notice to the Company at least thirty (30) days prior to the Date of Termination. If you seek to terminate your employment for Good Reason, you must provide the Company with written notification specifying the basis for your claim of Good Reason, and the Company shall have ten (10) days following its receipt of such notice to cure the circumstance giving rise to Good Reason.

(a) “Acquisition” as used in this Agreement will mean any of the following: (A) any “person,” as such term is used in Sections 13(d) and 14(d) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) (other than the Company or its affiliates), is or becomes the “beneficial owner” (as defined in Rule 13d-3 under the Exchange Act), directly or indirectly, of securities of the Company (not including in the securities beneficially owned by such person any securities acquired directly from the Company or you) representing fifty percent (50%) or more of the combined voting power of the Company’s then outstanding securities; (B) in the event that the individuals who as of the date hereof constitute the Board of Directors (the “Board”), and any new director whose election by the Board or nomination for election by the Company’s stockholders was approved by a vote of at least a majority of the Board then still in office who either were members of the Board as of the date hereof or whose election or nomination for election was previously so approved, cease for any reason to constitute at least a majority thereof; (C) the consummation of a merger or consolidation of the Company with or the sale of the Company to any other entity and, in connection with such merger, consolidation or sale, individuals who constitute the Board immediately prior to the time any agreement to effect such merger or consolidation is entered into fail for any reason to constitute at least a majority of the board of directors of the surviving/purchasing or acquiring entity following the consummation of such merger, consolidation or sale; (D) the stockholders of the Company approve a plan of complete liquidation of the Company; or (E) the consummation of the sale or disposition by the Company of all or substantially all of the Company’s assets to an entity not controlled by the Company.

(b) “Cause” as used in this Agreement means the occurrence of any of the following: (1) gross negligence or willful misconduct by you in the performance of your duties that is likely to have a material adverse effect on the Company or its reputation; (2) your indictment for, formal admission to (including a plea of guilty or non contendere to), or conviction of (A) a felony, (B) a crime of moral turpitude, dishonesty, breach of trust or unethical business conduct, or (C) any crime involving the Company; (3) your commission of an act of fraud or dishonesty in the performance of your duties; (4) repeated failure by you to perform your duties, which are reasonably and in good faith requested in writing by the CEO; (5) material breach of this Agreement by you, which you do not cure within ten (10) days following receipt by you of written notice of such breach; or (6) material breach of any written agreement between you and the Company, including, without limitation, the Confidentiality Agreement, that you fail to remedy within ten (10) days following written notice from the Company.

(d) “Good Reason” means (1) a material breach of this Agreement by the Company, which breach is not cured by the Company within ten (10) days following receipt of written notice thereof from you; provided, however, that the Company may only utilize its cure right two (2) times hereunder; (2) the relocation of the Company’s headquarters without your approval, such that the distance from your residence to the Company’s headquarters is increased by more than forty (40) miles compared to the distance to the Company’s current headquarters in Westford, Massachusetts; (3) a reduction in your then annual Base Salary without your approval; or (4) the assignment to you of a lower position in the organization in terms of your title, responsibility, authority or status without your approval.

(i) Each installment of the payments and benefits due under Section 7 that, in accordance with the dates and terms set forth herein, will in all circumstances, regardless of when the separation from service occurs, be paid within the short-term deferral period (as defined for the purposes of Section 409A) shall be treated as a short-term deferral within the meaning of Treasury Regulation Section 1.409A-1(b)(4) to the maximum extent permissible under Section 409A; and

(ii) Each installment of the payments and benefits due under Section 7 that is not paid within the short-term deferral period or otherwise cannot be treated as a short-term deferral within the meaning of Treasury Regulation Section 1.409A-1(b)(4) and that would, absent this subsection, be paid within the six-month period following your “separation from service” with the Company shall not be paid until the date that is six months and one day after such separation from service (or, if earlier, upon your death), with any such installments that are required to be delayed being accumulated during the six-month period and paid in a lump sum on the date that is six months and one day following your separation from service and any subsequent installments, if any, being paid in accordance with the dates and terms set forth herein; provided, however, that the preceding provisions of this sentence shall not apply to any installment of payments if and to the maximum extent that that such installment is deemed to be paid under a separation pay plan that does not provide for a deferral of compensation by reason of the application of Treasury Regulation 1.409A-1(b)(9)(iii) (relating to separation pay upon an involuntary separation from service). Any installments that qualify for the exception under Treasury Regulation Section 1.409A-1(b)(9)(iii) must be paid no later than the last day of the second taxable year following the taxable year in which your separation from service occurs.

10. Section 409A of the Code. This Agreement is intended to comply with the provisions of Section 409A and this Agreement shall, to the extent practicable, be construed in accordance therewith. Terms used in this Agreement shall have the meanings given such terms under Section 409A if and to the extent required in order to comply with Section 409A. Notwithstanding the foregoing, to the extent that this Agreement or any payment or benefit hereunder shall be deemed not to comply with Section 409A, then neither the Company, the Board of Directors nor its or their designees or agents shall be liable to you or any other person for any actions, decisions or determinations made in good faith.

(a) Entire Agreement; Modification. This Agreement along with the other agreements and Plans referenced herein contain the entire agreement of the parties relating to the subject matter hereof, and the parties hereto have made no agreements, representations or warranties relating to the subject matter of this Agreement that are not set forth otherwise herein (or in the other documents referenced herein). This Agreement, along with the other agreements and Plan referenced herein, supersede any and all prior agreements, written or oral, between you and the Company, including, without limitation, your promotion letter dated January 15, 2014 and your offer of re-employment dated April 28, 2011. No modification of this Agreement shall be valid unless made in writing and signed by the parties hereto.

(b) Severable Provisions. The provisions of this Agreement are severable and if any one or more provisions may be determined to be illegal or otherwise unenforceable, in whole or in part, the remaining provisions of this Agreement shall nevertheless be binding and enforceable. Notwithstanding the foregoing, if there are any conflicts between the terms of this Agreement and the terms of any Plan document referred to in this Agreement, then the terms of this Agreement shall govern and control. Except as modified hereby, this Agreement shall remain unmodified and in full force and effect.

(i) Any controversy, dispute or claim arising out of or relating to this Agreement or the breach hereof which cannot be settled by mutual agreement will be finally settled by binding arbitration in the Commonwealth of Massachusetts, under the jurisdiction of the American Arbitration Association or other mutually agreeable alternative arbitration dispute resolution service, before a single arbitrator appointed in accordance with the arbitration rules of the American Arbitration Association or other selected service, modified only as herein expressly provided. The arbitrator may enter a default decision against any party who fails to participate in the arbitration proceedings.

(iv) The parties agree that this Section 14(d) has been included to resolve any disputes between them with respect to this Agreement, and that this Section 14(d) will be grounds for dismissal of any court action commenced by either party with respect to this Agreement, other than post-arbitration actions seeking to enforce an arbitration award or actions seeking an injunction or temporary restraining order. In the event that any court determines that this arbitration procedure is not binding, or otherwise allows any litigation regarding a dispute, claim, or controversy covered by this Agreement to proceed, the parties hereto hereby waive, to the maximum extent allowed by law, any and all right to a trial by jury in or with respect to such litigation.

(e) Notices. All notices shall be in writing and shall be delivered personally (including by courier), sent by facsimile transmission (with appropriate documented receipt thereof), by overnight receipted courier service (such as UPS or FedEx) or sent by certified, registered or express mail, postage prepaid, to the Company at the following address: CEO, Sonus Networks, Inc., 4 Technology Park Drive, Westford, MA 01886, and to you at the most current home address in the Company’s files. Any such notice shall be deemed given when so delivered personally, or if sent by facsimile transmission, when transmitted, or, if by certified, registered or express mail, postage prepaid mailed, forty-eight (48) hours after the date of deposit in the mail. Any party may, by notice given in accordance with this paragraph to the other party, designate another address or person for receipt of notices hereunder.

(g) Assignment. This Agreement is personal in nature and neither of the parties hereto shall, without the written consent of the other, assign or otherwise transfer this Agreement or its obligations, duties and rights under this Agreement; provided, however, that in the event of the merger, consolidation, transfer or sale of all or substantially all of the assets of the Company, this Agreement shall, subject to the provisions hereof, be binding upon and inure to the benefit of such successor and such successor shall discharge and perform all of the promises, covenants, duties and obligations of the Company hereunder.



Very truly yours,

/s/ Raymond P. Dolan
Raymond P. Dolan
President and Chief Executive Officer



/s/ Kevin Riley		10/6/2014
Kevin Riley		Date