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As filed with the Securities and Exchange Commission on June 28,August 23, 2017


Registration No. 333-            333-219008


UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549



AMENDMENT NO. 1
TO
FORM S-4
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933



SOLSTICE SAPPHIRE INVESTMENTS, INC.
(Exact name of Registrant as specified in its charter)



Delaware
(State or other jurisdiction of
incorporation)
 7373
(Primary Standard Industrial
Classification Code Number)
 82-1669692
(I.R.S. Employer
Identification Number)



c/o Sonus Networks, Inc.
4 Technology Park Drive
Westford, Massachusetts 01886
(978) 614-8100

(Address, including zip code, and telephone number, including area code, of Registrant's principal executive offices)



Jeffrey M. Snider, Esq.
Chief Administrative Officer, Senior Vice President,
General Counsel and Corporate Secretary
Sonus Networks, Inc.
4 Technology Park Drive
Westford, Massachusetts 01886
(978) 614-8100

(Name, address, including zip code, and telephone number, including area code, of agent for service)



With copies to:

Jay E. Bothwick, Esq.
Mark G. Borden, Esq.
Joseph B. Conahan, Esq.
Wilmer Cutler Pickering Hale and Dorr LLP
60 State Street
Boston, Massachusetts 02109
(617) 526-6000

 

David S. Allinson, Esq.
Latham & Watkins LLP
885 Third Avenue
New York, New York 10022
(212) 751-4864



Approximate date of commencement of the proposed sale of the securities to the public:
As soon as practicable after this Registration Statement becomes effective and upon the satisfaction or
waiver of all other conditions to the closing of the mergers described herein.

          If the securities being registered on this Form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box.    o

          If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    o

          If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering.    o

          Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer o Accelerated filer o Non-accelerated filer ý
(Do not check if a
smaller reporting company)
 Smaller reporting company o

Emerging growth company o

          If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. o

          If applicable, place an X in the box to designate the appropriate rule provision relied upon in conducting this transaction

CALCULATION OF REGISTRATION FEE

        
 
Title of each class of securities
to be registered

 Amount to be
registered(1)

 Proposed maximum
offering price per
share

 Proposed maximum
aggregate offering
price(2)

 Amount of
registration fee(3)

 

Common Stock, $0.0001 par value

 114,889,882 N/A $441,904,098.78 $51,216.69

 

(1)
Represents the estimated maximum number of shares of common stock, $0.0001 par value, of Solstice Sapphire Investments, Inc. ("New Solstice") issuable in connection with the agreement and plan of merger described in this Registration Statement, pursuant to which Solstice Sapphire, Inc. ("Solstice Merger Sub") will merge with and into Sonus Networks, Inc. ("Sonus"), with Sonus surviving the merger as a wholly owned subsidiary of New Solstice (the "Sonus merger"), Green Sapphire Investments LLC ("Cayman Merger Sub") will merge with and into GENBAND Holdings Company ("GENBAND"), with GENBAND surviving the merger as a wholly owned subsidiary of New Solstice (the "GENBAND merger"), GENBAND Inc. ("GB") will merge with and into Green Sapphire LLC ("GB Merger Sub"), with GB Merger Sub surviving the merger as a wholly owned subsidiary of New Solstice (the "GB merger") and GENBAND II, Inc. ("GB II") will merge with and into GB Merger Sub, with GB Merger Sub surviving the merger as a wholly owned subsidiary of New Solstice (the "GB II merger").

(2)
Pursuant to Rule 457(f)(1) and (2) and Rule 457(c) under the Securities Act of 1933, as amended (the "Securities Act"), and solely for the purpose of calculating the registration fee, the proposed maximum aggregate offering price is equal to the sum of (a) the product of (i) 57,444,941, the estimated maximum number of shares of Sonus common stock to be canceled in the Sonus merger, including shares issuable under various equity plans, and (ii) $7.69, which is the average of the high and low prices of Sonus common stock on June 21, 2017, as reported on the NASDAQ Global Select Market; plus (b) one-third of the product of (i) 7,327,235,472, the estimated number of GENBAND shares to be cancelled in the GENBAND merger, and (ii) $0.00001, the par value of the GENBAND shares; plus (c) one-third of the product of (i) 384,234,301, the estimated number of shares of GB common stock to be cancelled in the GB merger, and (ii) $0.001, the par value of the GB common stock; plus (d) one-third of the product of (i) 81.166107, the estimated number of shares of GB II common stock to be cancelled in the GB II merger, and (ii) $0.01, the par value of the GB II common stock. Because there is no market for the GENBAND shares, GB common stock and GB II common stock, and GENBAND, GB and GB II have an accumulated capital deficit, the proposed maximum aggregate offering price with respect to such securities was calculated as one-third of the par value per share of these securities to be cancelled in the GENBAND merger, GB merger and GB II merger in accordance with Rule 457(f)(2) promulgated under the Securities Act.

(3)
Calculated by multiplying the estimated aggregate offering price of securities to be registered by 0.0001159.




          The Registrant hereby amends this Registration Statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this Registration Statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933, as amended, or until the Registration Statement shall become effective on such date as the Securities and Exchange Commission, acting pursuant to said Section 8(a), may determine.

   


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The information contained in this document is subject to completion or amendment. A registration statement relating to these securities has been filed with the Securities and Exchange Commission. These securities may not be sold nor may offers to buy be accepted prior to the time the registration statement becomes effective. This document shall not constitute an offer to sell or the solicitation of any offer to buy nor shall there be any sale of these securities in any jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such jurisdiction.

Subject to Completion, dated June 27,August 22, 2017

LOGO LOGO

TO THE STOCKHOLDERS OF
SONUS NETWORKS, INC., GENBAND HOLDINGS COMPANY, GENBAND INC. AND GENBAND II, INC.
MERGER PROPOSAL—YOUR VOTE IS VERY IMPORTANT

           [                        ], 2017

Dear Stockholders:

           Sonus Networks, Inc. (which we refer to as Sonus), GENBAND Holdings Company (which we refer to as GENBAND), GENBAND Inc. (which we refer to as GB) and GENBAND II, Inc. (which we refer to as GB II) have entered into an agreement and plan of merger (which, as amended or supplemented from time to time, we refer to as the merger agreement) providing for the strategic business combination of Sonus, GENBAND, GB and GB II under a new holding company named Solstice Sapphire Investments, Inc. (which we refer to as New Solstice). As a result of the business combination, New Solstice will succeed to and continue to operate, directly or indirectly, the then existing businesses of Sonus, GENBAND, GB and GB II. The post-closing name of New Solstice will be determined in due course prior to the closing of the mergers.

           Former Sonus stockholders will hold approximately 50%, and former GENBAND shareholders, GB stockholders and GB II stockholders, collectively, will hold approximately 50%, of the shares of New Solstice's common stock issued and outstanding immediately after the closing of the transactions contemplated by the merger agreement. New Solstice will apply to list its common stock on the NASDAQ Global Select Market (which we refer to as NASDAQ) under the symbol "[          ]," subject to official notice of issuance. New Solstice does not intend to avail itself of any of the exemptions from certain NASDAQ corporate governance requirements that are available to "controlled companies."

           In connection with the transactions contemplated by the merger agreement, Sonus stockholders will be entitled to receive one share of New Solstice common stock for each share of Sonus common stock outstanding as of immediately prior to the effective time of the mergers. Based on Sonus' closing per share price of $7.63$6.91 as of June 19,August 7, 2017, the shares of New Solstice common stock to be received by Sonus stockholders in connection with the business combination would have an aggregate value of approximately $383.3$350.2 million.

           The number of shares of New Solstice common stock that GENBAND shareholders, GB stockholders and GB II stockholders will be entitled to receive for their shares of common stock or ordinary shares of GENBAND, GB and GB II (as applicable) will, in the aggregate, be approximately equal to the number of shares of New Solstice common stock issuable to existing Sonus stockholders pursuant to the merger agreement, allocated among GENBAND shareholders, GB stockholders and GB II stockholders in accordance with the terms of the merger agreement and the GENBAND charter documents. Based on the current equity capitalization of Sonus, it is estimated that GENBAND shareholders, GB stockholders and GB II stockholders, collectively, will be entitled to receive approximately 50.250.7 million shares of New Solstice common stock. Based on Sonus' closing per share price as of June 19,August 7, 2017, the shares of New Solstice common stock to be received by GENBAND shareholders, GB stockholders and GB II stockholders in connection with the business combination would have an aggregate value of approximately $383.3$350.2 million. In addition, GENBAND shareholders, other than GB and GB II, will have the right to receive a three-year promissory note issued by New Solstice having an aggregate principal amount of $22.5 million and accruing interest at a rate of 7.5% per year for the first six months after the effective time of the mergers and 10% thereafter.

           Completion of the transactions contemplated by the merger agreement requires, among other things, the separate approvals of Sonus stockholders, GENBAND shareholders, GB stockholders and GB II stockholders. To obtain these approvals, Sonus will hold a special meeting of Sonus stockholders on [                        ], 2017, GENBAND will hold an extraordinary general meeting of GENBAND shareholders on [                        ], 2017 and each of GB and GB II will hold a special meeting of its stockholders on [                        ], 2017.

           Sonus stockholders will not be entitled to appraisal rights in connection with the Sonus merger. A description of the appraisal rights available to GENBAND shareholders, GB stockholders and GB II stockholders as a statutory matter is included in the section entitled "Appraisal Rights" beginning on page 318340 of the enclosed joint proxy statement/prospectus.

           THE SONUS BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE SONUS STOCKHOLDERS VOTE "FOR" EACH OF THE PROPOSALS TO BE CONSIDERED AT THE SONUS SPECIAL MEETING.

           THE GENBAND BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE GENBAND SHAREHOLDERS VOTE "FOR" EACH OF THE PROPOSALS TO BE CONSIDERED AT THE GENBAND EXTRAORDINARY GENERAL MEETING.

           THE GB BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE GB STOCKHOLDERS VOTE "FOR" EACH OF THE PROPOSALS TO BE CONSIDERED AT THE GB SPECIAL MEETING.

           THE GB II BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT THE GB II STOCKHOLDERS VOTE "FOR" EACH OF THE PROPOSALS TO BE CONSIDERED AT THE GB II SPECIAL MEETING.

           This document is a prospectus of New Solstice, as well as a proxy statement for each of Sonus, GENBAND, GB and GB II, and provides you with detailed information about the merger agreement, the special meetings of Sonus, GB and GB II stockholders and the extraordinary general meeting of GENBAND shareholders and other matters contemplated by the merger agreement.We encourage you to read carefully the entire joint proxy statement/prospectus, including all its annexes, the documents incorporated by reference, including the section entitled "Risk Factors" beginning on page 5457 of the enclosed joint proxy statement/prospectus.

           Your vote is very important. Whether or not Sonus stockholders, GENBAND shareholders, GB stockholders and/or GB II stockholders plan to attend the respective special meeting or extraordinary general meeting (as applicable), we ask each Sonus stockholder, GENBAND shareholder, GB stockholder and GB II stockholder to please submit a proxy to vote his, her or its shares as soon as possible to make sure that his, her or its shares are represented and voted at such special meeting or extraordinary general meeting (as applicable).


 

 

 

Raymond P. Dolan
President and Chief Executive Officer
Sonus Networks, Inc.

 

David Walsh
President and Chief Executive Officer
GENBAND Holdings Company

           Neither the Securities and Exchange Commission nor any state securities commission has approved or disapproved the securities to be issued in connection with the mergers or determined if the enclosed joint proxy statement/prospectus is accurate or complete. Any representation to the contrary is a criminal offense.

           The enclosed joint proxy statement/prospectus is dated [                        ], 2017, and is first being mailed or otherwise delivered to Sonus stockholders, GENBAND shareholders, GB stockholders and GB II stockholders on or about [                        ], 2017.


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LOGO

Sonus Networks, Inc.
4 Technology Park Drive
Westford, Massachusetts 01886



NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
TO BE HELD [                  ], 2017



Dear Sonus Networks, Inc. Stockholders:

        NOTICE IS HEREBY GIVEN that a special meeting of stockholders of Sonus Networks, Inc., a Delaware corporation (which we refer to as Sonus), will be held on [                  ], 2017 at [            ], Eastern time, at the offices of Wilmer Cutler Pickering Hale and Dorr LLP, located at 60 State Street, Boston, Massachusetts 02109, for the following purposes:


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        The approval by Sonus stockholders of the Sonus merger proposal and the Sonus governance-related proposals is required to complete the mergers under the terms of the merger agreement. Each of the five Sonus governance-related proposals is cross-conditioned upon the approval by Sonus stockholders of the Sonus merger proposal and each other Sonus governance-related proposal, and completion of the mergers is cross-conditioned on the approval by Sonus stockholders of each of the Sonus governance-related proposals. The approval by Sonus stockholders of the Sonus merger proposal is the only approval of Sonus stockholders required by Delaware law to complete the Sonus merger. The approval of the Sonus governance-related proposals is being sought under Rule 14(a)-4(b) under the Securities Exchange Act of 1934, as amended (which we refer to as the Exchange Act), which requires certain matters to be presented separately to stockholders for approval. The approval of the Sonus executive compensation proposal is being sought in accordance with Rule 14a-21(c) under the Exchange Act.

        THE SONUS BOARD OF DIRECTORS UNANIMOUSLY RECOMMENDS THAT SONUS STOCKHOLDERS VOTE "FOR" EACH PROPOSAL.

        Holders of Sonus common stock of record at the close of business on [                  ], 2017 are entitled to vote at the Sonus special meeting, or any adjournment of the Sonus special meeting. At least 10 days prior to the special meeting, a complete list of stockholders of record as of [                  ], 2017, will be available for inspection by any stockholder for any purpose germane to the special meeting, during ordinary business hours, at the office of the Corporate Secretary of Sonus, at 4 Technology Park Drive, Westford, Massachusetts 01886.


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        Your vote is important.    All Sonus stockholders entitled to notice of, and to vote at, the Sonus special meeting are cordially invited to attend the Sonus special meeting in person.However, to ensure your representation at the Sonus special meeting, please submit your proxy, either by mail, by telephone or through the Internet with voting instructions. The submission of your proxy will not prevent you from voting in person, but it will help to secure a quorum and avoid added solicitation costs. Any holder of Sonus common stock entitled to vote who is present at the Sonus special meeting may vote in person instead of by proxy, thereby revoking any previous proxy. A proxy may also be revoked in writing at any time before the vote is taken at the Sonus special meeting. Sonus stockholders will not be entitled to appraisal rights in connection with the Sonus merger.

        We encourage you to read the enclosed joint proxy statement/prospectus carefully, including all its annexes and documents incorporated by reference, including the section entitled "Risk Factors" beginning on page 5457 of the enclosed joint proxy statement/prospectus. If you have any questions or need assistance voting your shares, please call Sonus' proxy solicitor, Innisfree M&A Incorporated, at (888) 750-5834 (toll free) or (212) 750-5833 (collect).


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LOGO

GENBAND Holdings Company
3605 E. Plano Parkway
Plano, Texas 75074




NOTICE OF EXTRAORDINARY GENERAL MEETING OF SHAREHOLDERS
TO BE HELD [                        ], 2017



        Notice is hereby given that an extraordinary general meeting (which we refer to as the Extraordinary General Meeting) of GENBAND Holdings Company, a Cayman Islands exempted company limited by shares (which we refer to as GENBAND), will be held at [                        ] on [                        ], 2017 at [                        ], Central time, to consider and vote upon a proposal to adopt the agreement and plan of merger, dated as of May 23, 2017 (which, as amended or supplemented from time to time, we refer to as the merger agreement), among Sonus Networks, Inc., a Delaware corporation (which we refer to as Sonus), Solstice Sapphire Investments, Inc., a Delaware corporation and wholly owned subsidiary of Sonus (which we refer to as New Solstice), Solstice Sapphire Inc., a Delaware corporation and wholly owned subsidiary of New Solstice (which we refer to as Solstice Merger Sub), Green Sapphire Investments LLC, a Delaware limited liability company and wholly owned subsidiary of New Solstice (which we refer to as Cayman Merger Sub), Green Sapphire LLC, a Delaware limited liability company and wholly owned subsidiary of New Solstice (which we refer to as GB Merger Sub), GENBAND, GENBAND Inc., a Delaware corporation (which we refer to as GB), and GENBAND II, Inc., a Delaware corporation (which we refer to as GB II), and approve the merger (which we refer to as the GENBAND merger) of Cayman Merger Sub with and into GENBAND, with GENBAND surviving the GENBAND merger as a wholly owned subsidiary of New Solstice, and associated matters.

        In connection with the proposals above, the Extraordinary General Meeting will be held for the purpose of considering and, if thought fit, passing and approving the following resolutions:


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        Pursuant to the Companies Law (2016 Revision) and the Amended and Restated Memorandum and Articles of Association of GENBAND, the Plan of Merger must be authorized by GENBAND and by a shareholder resolution passed by shareholders holding 662/3% or more of all issued and outstanding GENBAND Class A Shares and GENBAND Class C Shares attending and voting at the Extraordinary General Meeting called for the purposes of approving the Plan of Merger.

        Each of proposals 6, 7, 8 and 9 above (which we refer to as the GENBAND governance-related proposals) is cross-conditioned upon the approval by GENBAND shareholders of each of proposals 2, 3, 4, 5 and 10 above (which we refer to as the GENBAND merger proposals) and each other GENBAND governance-related proposal, and completion of the mergers is cross-conditioned on the approval by GENBAND shareholders of each of the GENBAND governance-related proposals. None of the actions contemplated by the GENBAND governance-related proposals will proceed if the GENBAND merger proposals or any of the GENBAND governance-related proposals is not approved by GENBAND shareholders. As a result, a vote against any of the GENBAND governance-related proposals effectively will be a vote against adoption of the merger agreement and the transactions contemplated by the merger agreement. Failure to gain shareholder approval for any of the GENBAND governance-related proposals could cause the mergers not to close or to close later than expected, and/or could cause GENBAND to incur substantial costs and expenses. If the mergers are completed, the provisions of the New Solstice charter and New Solstice's amended and restated bylaws, including the terms of the shares of New Solstice common stock, will become applicable to GENBAND shareholders who continue as New Solstice stockholders as a result of the mergers regardless of whether they vote in favor of the GENBAND merger or any of the GENBAND governance-related proposals.

THE GENBAND BOARD OF DIRECTORS RECOMMENDS THAT GENBAND SHAREHOLDERS VOTE "FOR" EACH PROPOSAL.

        Holders of GENBAND Class A Shares and GENBAND Class C Shares of record at the close of business on [                        ], 2017 are entitled to vote at the Extraordinary General Meeting, or any adjournment of the Extraordinary General Meeting. Holders of record of GENBAND Class B Shares and GENBAND Class E Shares are not entitled to vote shares at the Extraordinary General Meeting. At least ten days prior to the Extraordinary General Meeting, a complete list of shareholders of record as of [                        ], 2017, will be available for inspection by any shareholder for any purpose germane


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to the Extraordinary General Meeting, during ordinary business hours, at the office of the Corporate Secretary of GENBAND, at 3605 E. Plano Parkway, Plano, Texas 75074.

        Your vote is important.    All GENBAND shareholders entitled to notice of, and to vote at, the Extraordinary General Meeting are cordially invited to attend the Extraordinary General Meeting in person.However, to ensure your representation at the Extraordinary General Meeting, please submit your proxy by mail with voting instructions. The submission of your proxy will not prevent you from voting in person, but it will help to secure a quorum and avoid added solicitation costs. Any holder of GENBAND shares entitled to vote who is present at the Extraordinary General Meeting may vote in person instead of by proxy, thereby revoking any previous proxy. A proxy may also be revoked in writing at any time before the vote is taken at the Extraordinary General Meeting.

        We encourage you to read the enclosed joint proxy statement/prospectus carefully, including all its annexes and documents incorporated by reference, including the section entitled "Risk Factors" beginning on page 54.57. If you have any questions or need assistance voting your shares, please call GENBAND at (972) 461-7555.


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LOGO

GENBAND Inc.
3605 E. Plano Parkway
Plano, Texas 75074




NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
TO BE HELD [                        ], 2017



Dear GENBAND Inc. Stockholders:

        NOTICE IS HEREBY GIVEN that a special meeting of stockholders of GENBAND Inc., a Delaware corporation (which we refer to as GB), will be held on [                        ], 2017 at [                    ], Central time, at [                    ], for the following purposes:

        THE GB BOARD OF DIRECTORS RECOMMENDS THAT GB STOCKHOLDERS VOTE "FOR" EACH PROPOSAL.

        Holders of GB common stock of record at the close of business on [                        ], 2017 are entitled to vote at the GB special meeting, or any adjournment of the GB special meeting. At least ten days prior to the special meeting, a complete list of stockholders of record as of [                        ], 2017, will be available for inspection by any stockholder for any purpose germane to the special meeting, during ordinary business hours, at the office of the Corporate Secretary of GB, at 3605 E. Plano Parkway, Plano, Texas 75074.

        Your vote is important.    All GB stockholders entitled to notice of, and to vote at, the GB special meeting are cordially invited to attend the GB special meeting in person.However, to ensure your representation at the GB special meeting, please submit your proxy by mail with voting instructions. The submission of your proxy will not prevent you from voting in person, but it will help to secure a quorum and avoid added solicitation costs. Any holder of GB common stock entitled to vote who is present at the GB special meeting may vote in person instead of by proxy, thereby revoking any previous proxy. A proxy may also be revoked in writing at any time before the vote is taken at the GB special meeting.

        We encourage you to read the enclosed joint proxy statement/prospectus carefully, including all its annexes and documents incorporated by reference, including the section entitled "Risk Factors" beginning on page 54.57. If you have any questions or need assistance voting your shares, please call GB at (972) 461-7555.


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LOGO

GENBAND II, Inc.
3605 E. Plano Parkway
Plano, Texas 75074




NOTICE OF SPECIAL MEETING OF STOCKHOLDERS
TO BE HELD [                        ], 2017



Dear GENBAND II, Inc. Stockholders:

        NOTICE IS HEREBY GIVEN that a special meeting of stockholders of GENBAND II, Inc., a Delaware corporation (which we refer to as GB II), will be held on [                        ], 2017 at [                    ], Central time, at [                    ], for the following purposes:

        THE GB II BOARD OF DIRECTORS RECOMMENDS THAT GB II STOCKHOLDERS VOTE "FOR" EACH PROPOSAL.

        Holders of GB II common stock of record at the close of business on [                        ], 2017 are entitled to vote at the GB II special meeting, or any adjournment of the GB II special meeting. At least ten days prior to the special meeting, a complete list of stockholders of record as of [                        ], 2017, will be available for inspection by any stockholder for any purpose germane to the special meeting, during ordinary business hours, at the office of the Corporate Secretary of GB II, at 3605 E. Plano Parkway, Plano, Texas 75074.

        Your vote is important.    All GB II stockholders entitled to notice of, and to vote at, the GB II special meeting are cordially invited to attend the GB II special meeting in person.However, to ensure your representation at the GB II special meeting, please submit your proxy by mail with voting instructions. The submission of your proxy will not prevent you from voting in person, but it will help to secure a quorum and avoid added solicitation costs. Any holder of GB II common stock entitled to vote who is present at the GB II special meeting may vote in person instead of by proxy, thereby revoking any previous proxy. A proxy may also be revoked in writing at any time before the vote is taken at the GB II special meeting.

        We encourage you to read the enclosed joint proxy statement/prospectus carefully, including all its annexes and documents incorporated by reference, including the section entitled "Risk Factors" beginning on page 54.57. If you have any questions or need assistance voting your shares, please call GB II at (972) 461-7555.


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EXPLANATORY NOTE

        This joint proxy statement/prospectus relates to the agreement and plan of merger, dated as of May 23, 2017 (which, as amended or supplemented from time to time, we refer to as the merger agreement), among Sonus Networks, Inc., a Delaware corporation (which we refer to as Sonus), Solstice Sapphire Investments, Inc., a Delaware corporation and wholly owned subsidiary of Sonus (which we refer to as New Solstice), Solstice Sapphire, Inc., a Delaware corporation and wholly owned subsidiary of New Solstice (which we refer to as Solstice Merger Sub), Green Sapphire Investments LLC, a Delaware limited liability company and wholly owned subsidiary of New Solstice (which we refer to as Cayman Merger Sub), Green Sapphire LLC, a Delaware limited liability company and wholly owned subsidiary of New Solstice (which we refer to as GB Merger Sub), GENBAND Holdings Company, a Cayman Islands exempted company limited by shares (which we refer to as GENBAND), GENBAND Inc., a Delaware corporation (which we refer to as GB), and GENBAND II, Inc., a Delaware corporation (which we refer to as GB II, and together with GENBAND and GB, the GENBAND parties).

        Upon the terms and subject to the conditions of the merger agreement (a copy of which is attached to this joint proxy statement/prospectus asAnnex A), Sonus, GENBAND, GB and GB II have agreed to effect a strategic combination of their respective businesses under a new holding company, New Solstice (which we refer to as the business combination). Pursuant to the merger agreement:

        In connection with the business combination, among other things, (i) the respective businesses of Sonus, GENBAND, GB and GB II will be held under a new holding company, New Solstice, (ii) existing Sonus stockholders will be entitled to receive one share of common stock, par value $0.0001 per share, of New Solstice (which we refer to as New Solstice common stock), for each share of Sonus common stock held by such holders (which we refer to as the Sonus exchange ratio), and (iii) GENBAND shareholders, GB stockholders and GB II stockholders will be entitled to receive for their shares of common stock or ordinary shares (as applicable) of GENBAND, GB and GB II, in the aggregate, a number of shares of New Solstice common stock that is approximately equal to the number of shares of New Solstice common stock issuable to existing Sonus stockholders pursuant to the merger agreement, allocated among GENBAND shareholders, GB stockholders and GB II stockholders in accordance with the terms of the merger agreement and the GENBAND charter documents, and GENBAND shareholders, other than GB and GB II, will additionally have the right to receive a three-year promissory note issued by New Solstice having an aggregate principal amount of $22.5 million and accruing interest at a rate of 7.5% per year for the first six months after the effective time of the mergers and 10% thereafter (which we refer to as the promissory note).

        Based on Sonus' closing per share price of $7.63$6.91 as of June 19,August 7, 2017, the shares of New Solstice common stock to be received by Sonus stockholders in connection with the business combination would have an aggregate value of approximately $383.3$350.2 million. Based on the current equity capitalization of

i


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Sonus, it is estimated that GENBAND shareholders, GB stockholders and GB II stockholders, collectively, will be entitled to receive approximately 50.250.7 million shares of New Solstice common stock. Based on Sonus' closing per share price as of June 19,August 7, 2017, the shares of New Solstice common stock to be received by GENBAND shareholders, GB stockholders and GB II stockholders in connection with the business combination would have an aggregate value of approximately $383.3$350.2 million.

        This document serves different purposes depending on the stockholders or shareholders to whom it is delivered. With respect to Sonus stockholders, this document serves as:

        With respect to GENBAND shareholders, this document serves as:

        With respect to GB stockholders, this document serves as:

        With respect to GB II stockholders, this document serves as:

        Unless the context otherwise requires, all references in this joint proxy statement/prospectus to "we," "us," or "our" refer to Sonus and the GENBAND parties.

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ADDITIONAL INFORMATION

        The enclosed joint proxy statement/prospectus incorporates by reference important business and financial information about Sonus from documents that are not included in or delivered with the joint proxy statement/prospectus. This information is available to you without charge upon your written or oral request. You can obtain the documents incorporated by reference in the joint proxy statement/prospectus by requesting them in writing or by telephone from Sonus at the following:

Sonus Networks, Inc.
4 Technology Park Drive
Westford, Massachusetts 01886
Attention: Corporate Secretary
(978) 614-8100

        In addition, if you have questions about the mergers, the extraordinary general meeting or the special meetings, or if you need to obtain copies of the enclosed joint proxy statement/prospectus, proxy cards or other documents incorporated by reference in the joint proxy statement/prospectus, please feel free to contact:

Innisfree M&A Incorporated
501 Madison Avenue, 20th Floor
New York, New York 10022
Stockholders may call toll free: (888) 750-5834
Banks and Brokers may call collect: (212) 750-5833

        You will not be charged for any of the documents you request.

        If you would like to request documents from any of Sonus, GENBAND, GB or GB II, please do so at least five business days before their respective special meetings or extraordinary general meeting (as applicable) or by [                ], 2017, in order to receive them before their respective special meetings or extraordinary general meeting (as applicable).

        Information on the Internet websites of Sonus and GENBAND are not part of the enclosed joint proxy statement/prospectus. You should not rely on that information in deciding whether to adopt the merger agreement and approve the applicable mergers unless that information is in this document or has been incorporated by reference into this document.

        You should only rely on the information contained or incorporated by reference in this document. We have not authorized anyone to provide you with different information. The document is dated [                ], 2017, and you should not assume that information contained in this document is accurate as of any date other than that date. Neither the mailing of this document to any person nor the issuance by New Solstice of shares of its common stock in connection with the transactions contemplated by the merger agreement will create any implications to the contrary. For a more detailed description of the information incorporated by reference in the enclosed joint proxy statement/prospectus and how you may obtain it, see the section entitled "Where You Can Find More Information" beginning on page 328350 of the enclosed joint proxy statement/prospectus.

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TABLE OF CONTENTS

QUESTIONS AND ANSWERS

  1 

STRUCTURE OF THE TRANSACTIONS

  2021 

SUMMARY

  2526 

Parties to the Merger Agreement

  2526 

The Mergers and the Merger Agreement

  2728 

Consideration to be Received in Connection with the Transactions Contemplated by the Merger Agreement

  2728 

The Voting Agreement

  2729 

The Principal Stockholders Agreement

  2829 

The Registration Rights Agreement

  2829 

The Sonus Special Meeting

  2829 

The GENBAND Extraordinary General Meeting

  2931 

The GB Special Meeting

  3134 

The GB II Special Meeting

  3235 

Recommendation of the Sonus Board of Directors

  3336 

Recommendation of the GENBAND Board of Directors

  3437 

Recommendation of the GB Board of Directors

  3437 

Recommendation of the GB II Board of Directors

  3437 

Opinions of Sonus' Financial Advisor

  3437 

Opinion of GENBAND's Financial Advisor

  3538 

Interests of Directors and Executive Officers in the Transactions

  3639 

Regulatory Matters Relating to the Transactions

  3740 

Treatment of Sonus Equity Awards

  3841 

Listing of New Solstice Common Stock on NASDAQ; Delisting and Deregistering of Sonus Common Stock

  3942 

Appraisal Rights

  3942 

No Solicitation

  3943 

Conditions to Completion of the Mergers

  4043 

Termination of the Merger Agreement

  4043 

Termination Fee Relating to the Mergers

  4144 

Comparison of Stockholder Rights

  4144 

Material U.S. Federal Income Tax Consequences of the Sonus Merger to U.S. Holders of Sonus Common Stock

  4144 

Accounting Treatment

  4245

Litigation Related to the Mergers

45 

SELECTED CONSOLIDATED HISTORICAL FINANCIAL DATA OF SONUS

  4346 

SELECTED CONSOLIDATED HISTORICAL FINANCIAL DATA OF GENBAND

  4649 

SELECTED UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL DATA

  4851 

COMPARATIVE HISTORICAL AND UNAUDITED PRO FORMA PER SHARE DATA

  4952 

HISTORICAL MARKET PRICE OF SONUS COMMON STOCK

  5053 

HISTORICAL MARKET PRICE OF GENBAND, GB AND GB II

  5154 

CAUTIONARY STATEMENT REGARDING FORWARD-LOOKING STATEMENTS

  5255 

RISK FACTORS

  5457 

Risks Relating to the Mergers

  5457 

Risks Relating to the Combined Company Following the Mergers

  6064 

Risks Relating to Ownership of New Solstice Common Stock

  6366 

Risks Relating to Sonus' Business

  6568 

Risks Relating to the GENBAND Parties' Business

  65

PARTIES TO THE MERGER AGREEMENT

74

Sonus Networks, Inc. (Sonus)

7468 

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PARTIES TO THE MERGER AGREEMENT

78

Sonus Networks, Inc. (Sonus)

78

Solstice Sapphire Investments, Inc. (New Solstice)

  7478 

Solstice Sapphire, Inc. (Solstice Merger Sub)

  7478 

Green Sapphire LLC (GB Merger Sub)

  7478 

Green Sapphire Investments LLC (Cayman Merger Sub)

  7478 

GENBAND Holdings Company (GENBAND)

  7579 

GENBAND Inc. (GB)

  7680 

GENBAND II, Inc. (GB II)

  7680 

THE SONUS SPECIAL MEETING

  7781 

Date, Time and Place

  7781 

Purpose

  7781 

Recommendation of the Sonus Board

  7781 

Record Date; Shares Entitled to Vote

  7882 

Quorum

  7882 

Vote Required

  7983 

Voting by Sonus' Directors and Executive Officers

  7983 

How to Submit Your Proxy

  7984 

Voting in Person at the Sonus Special Meeting

  8084 

Revoking Your Proxy

  8084 

Confidential Voting

  8085 

Solicitation of Proxies

  8185 

Assistance

 ��8185 

PROPOSAL 1—ADOPTION OF THE MERGER AGREEMENT AND APPROVAL OF THE SONUS MERGERPROPOSALS

  82

PROPOSAL 2—ADJOURNMENT OF THE SONUS SPECIAL MEETING

83

PROPOSAL 3—ADVISORY VOTE ON MERGER-RELATED COMPENSATION FOR SONUS NAMED EXECUTIVE OFFICERS

8486 

THE GENBAND EXTRAORDINARY GENERAL MEETING

  8691 

Date, Time and Place

  8691 

Purpose

  8691 

Recommendation of the GENBAND Board

  8793 

Record Date; Shares Entitled to Vote

  8794 

Quorum

  8894 

Vote Required

  8894 

Voting by GENBAND's Directors and Executive Officers

  8996 

How to Submit Your Proxy

  8996 

Voting of Proxies

  8996 

Revoking Your Proxy

  9097 

Attending the Extraordinary General Meeting

  9097 

Confidential Voting

  9097 

Solicitation of Proxies

  9097 

Assistance

  9197 

THE GB SPECIAL MEETING

  9298 

Date, Time and Place

  9298 

Purpose

  9298 

Recommendation of the GB Board

  9298 

Record Date; Shares Entitled to Vote

  9399 

Quorum

  9399 

Vote Required

  9399 

Voting by GB's Directors and Executive Officers

  9399 

How to Submit Your Proxy

  94100 

Voting of Proxies

  94100

Revoking Your Proxy

100 

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Revoking Your Proxy

94

Attending the Special Meeting

  94100 

Confidential Voting

  95101 

Solicitation of Proxies

  95101 

Assistance

  95101 

THE GB II SPECIAL MEETING

  96102 

Date, Time and Place

  96102 

Purpose

  96102 

Recommendation of the GB II Board

  96102 

Record Date; Shares Entitled to Vote

  97103 

Quorum

  97103 

Vote Required

  97103 

Voting by GB II's Directors and Executive Officers

  97103 

How to Submit Your Proxy

  98104 

Voting of Proxies

  98104 

Revoking Your Proxy

  98104 

Attending the Special Meeting

  98104 

Confidential Voting

  99105 

Solicitation of Proxies

  99105 

Assistance

  99105 

THE MERGERS

  100106 

Structure of the Mergers

  100106 

Consideration to be Received in Connection with the Transactions Contemplated by the Merger Agreement

  101107 

Background of the Mergers

  103109 

Recommendation of the Sonus Board; Sonus' Reasons for the Mergers

  116123 

Certain Prospective Financial Information of Sonus and GENBAND

  121128 

Opinions of Sonus' Financial Advisor

  126133 

Opinion of GENBAND's Financial Advisor

  146153 

Recommendation of the GENBAND Board

  159166 

Recommendation of the GB Board

  159166 

Recommendation of the GB II Board

  160167 

Reasons of GENBAND, GB and GB II for the Transactions

  160167 

Interests of Directors and Executive Officers in the Transactions

  164171 

Regulatory Matters Relating to the Transactions

  177184 

Material U.S. Federal Income Tax Consequences of the Sonus Merger to U.S. Holders of Sonus Common Stock

  178185 

Accounting Treatment

  181187 

Restrictions on Sales of Shares by Certain Affiliates

  181188 

Listing of New Solstice Common Stock on NASDAQ

  182188 

Delisting and Deregistering of Sonus Common Stock

  182189 

Amendment to Sonus By-laws

  182189

Litigation Related to the Mergers

189 

THE MERGER AGREEMENT

  183190 

Explanatory Note Regarding the Merger Agreement and the Summary of the Merger Agreement

  183190 

Structure of the Mergers

  183190 

Closing and Effective Times of the Mergers

  185192 

Directors and Officers of New Solstice after the Mergers

  186193 

Consideration to be Received by Stockholders of Sonus, GENBAND, GB and GB II

  186193 

Treatment of Sonus Equity Awards

  186193 

Appraisal Rights

  188195 

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Exchange of Certificates; No Fractional Shares

  189196 

Representations and Warranties

  190197 

Covenants and Agreements

  192199 

No Solicitation

  194201 

Additional Agreements

  197204 

Conditions to the Mergers

  200207 

Expenses

  202209 

Termination

  203210 

Termination Fee

  204211 

Amendment and Waiver

  204211 

Specific Performance; Third-Party Beneficiaries

  204211 

OTHER RELATED AGREEMENTS

  206213 

Voting Agreement

  206213 

Principal Stockholders Agreement

  207214 

Registration Rights Agreement

  209216 

The Promissory Note

  210217 

GENBAND MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

  211218 

MANAGEMENT AND OTHER INFORMATION OF THE COMBINED COMPANY

  234250 

UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS

  236257 

GENBAND EXECUTIVE AND DIRECTOR COMPENSATION

  250272 

CERTAIN BENEFICIAL OWNERS OF SONUS COMMON STOCK

  258280 

CERTAIN BENEFICIAL OWNERS OF GENBAND, GB AND GB II

  261283 

DESCRIPTION OF NEW SOLSTICE CAPITAL STOCK

  267289 

COMPARISON OF STOCKHOLDER RIGHTS

  272294 

RELATED PERSON TRANSACTIONS

  317339 

APPRAISAL RIGHTS

  318340 

Sonus Stockholder Appraisal Rights

  318340 

GENBAND Shareholder Dissenter Rights

  318340 

GB and GB II Stockholder Appraisal Rights

  319341 

EXPERTS

  324346 

LEGAL MATTERS

  325347 

FUTURE STOCKHOLDER PROPOSALS

  326348 

HOUSEHOLDING OF JOINT PROXY STATEMENT/PROSPECTUS

  327349 

WHERE YOU CAN FIND MORE INFORMATION

  328350 

INDEX TO FINANCIAL STATEMENTS

  FIN-1 

 

ANNEX A

 

MERGER AGREEMENT

  

ANNEX B

 

PLAN OF MERGER

  

ANNEX C

 

ARTICLE 5.2 OF THE GENBAND ARTICLES OF ASSOCIATION

  

ANNEX D

 

OPINIONS OF EVERCORE GROUP L.L.C

  

ANNEX E

 

OPINION OF GUGGENHEIM SECURITIES, LLC

  

ANNEX F

 

FORM OF NEW SOLSTICE CHARTER

  

ANNEX G

 

FORM OF NEW SOLSTICE BY-LAWS

  

ANNEX H

 

VOTING AGREEMENT

  

ANNEX I

 

PRINCIPAL STOCKHOLDERS AGREEMENT

  

ANNEX J

 

REGISTRATION RIGHTS AGREEMENT

  

ANNEX K

 

PROMISSORY NOTE

  

ANNEX L

 

SECTION 262 OF THE GENERAL CORPORATION LAW OF THE STATE OF DELAWARE

  

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QUESTIONS AND ANSWERS ABOUT
THE MERGERS, THE SPECIAL MEETINGS AND THE EXTRAORDINARY GENERAL MEETING

        The following questions and answers are intended to briefly address some commonly asked questions regarding the mergers and the special meetings and extraordinary general meeting. These questions and answers may not address all questions that may be important to you as a stockholder or shareholder (as applicable) of Sonus, GENBAND, GB or GB II. To better understand these matters, and for a description of the legal terms governing the mergers, you should carefully read this entire joint proxy statement/prospectus, including the annexes, as well as the documents that have been incorporated by reference in this joint proxy statement/prospectus. See the section entitled "Where You Can Find More Information" beginning on page 328350 of this joint proxy statement/prospectus.

About the Mergers

Q:
Why am I receiving this joint proxy statement/prospectus?

A:
Sonus and the GENBAND parties have entered into the merger agreement providing for the business combination of Sonus and the GENBAND parties under a new holding company named Solstice Sapphire Investments, Inc. (which we refer to as New Solstice). Pursuant to the merger agreement, (i) Solstice Merger Sub will merge with and into Sonus, with Sonus surviving the merger as a wholly owned subsidiary of New Solstice (which we refer to as the Sonus merger); (ii) Cayman Merger Sub will merge with and into GENBAND, with GENBAND surviving the merger as a wholly owned subsidiary of New Solstice (which we refer to as the GENBAND merger); (iii) GB will merge with and into GB Merger Sub, with GB Merger Sub surviving the merger as a wholly owned subsidiary of New Solstice (which we refer to as the GB merger); and (iv) GB II will merge with and into GB Merger Sub, with GB Merger Sub surviving the merger as a wholly owned subsidiary of New Solstice (which we refer to as the GB II merger, and together with the GENBAND merger and the GB merger, the GENBAND mergers, and the GENBAND mergers together with the Sonus merger, the mergers). See the section entitled "The Mergers—Structure of the Mergers" beginning on page 100106 of this joint proxy statement/prospectus.

As a result of the transactions contemplated by the merger agreement, former Sonus stockholders and GENBAND party shareholders will own shares of New Solstice common stock, and New Solstice will apply to list its common stock for trading on NASDAQ under the symbol "[          ]," subject to official notice of issuance. Completion of the transactions contemplated by the merger agreement is conditioned upon, among other things, the approval of Sonus stockholders and the GENBAND party shareholders.

Q:
What are the specific proposals on which I am being asked to vote?

A:
Sonus is holding a special meeting of stockholders (which we refer to as the Sonus special meeting) in order for stockholders to obtainconsider and vote upon the stockholder approval necessaryfollowing matters:

a proposal (which we refer to as the Sonus merger proposal) to adopt the merger agreement and approve the Sonus mergermerger;

five separate proposals (which we refer to as the Sonus stockholder approval). governance-related proposals) relating to the amended and restated certificate of incorporation of New Solstice that will be in effect after the completion of the mergers under the merger agreement (which we refer to as the New Solstice charter) and the principal stockholders agreement that we will enter into with certain of the existing principal stockholders of the GENBAND parties upon completion of the mergers (which we refer to as the OEP Stockholders);

a proposal (which we refer to as the Sonus adjournment proposal) to permit Sonus to adjourn the Sonus special meeting, if necessary, for further solicitation of proxies if there are not

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