Syniverse Enables Inbound Roaming Voice Solution Supporting AT&T's 3G Decommission

Syniverse's Evolved Mobility Platform Allows 3G-to-VoLTE Interworking

Syniverse, a premier global technology provider of mission-critical mobile platforms for carriers and enterprises, today announced in collaboration with AT&T, the development and deployment of a solution that preserves inbound voice roaming after AT&T phases out its 3G network on February 22, 2022. AT&T announced in 2019 it would retire its 3G service by decommissioning its circuit-switch based network.

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Bob Chiodo, General Manager of Americas Carrier Division, Syniverse (Photo: Business Wire)

For mobile operators worldwide that still require the use of circuit-switch fall back, implementing Syniverse's Evolved Mobility^SM solution will ensure customers seamlessly connect when roaming on AT&T's network after February 22, 2022. Implementing this solution ensures a better customer experience by avoiding disruptions when roaming for those roaming subscribers that do not have VoLTE roaming support.

With Syniverse's Evolved Mobility solution, both the visited and home network can maintain the method of roaming that best suit them, meeting the needs of both operators and end users. This includes facilitating voice and short message service (SMS) and the clearing, settlement, and near-trade as well for a full end-to-end solution.

Decommissioning circuit switch networks like 3G frees up precious spectrum to accommodate increasing 4G and 5G bandwidth demands of mobile devices and internet of things (IoT) devices that are emerging across all verticals. For more than three decades Syniverse has managed the transition from each generation of mobile network techniques. With Evolved Mobility, Syniverse continues to drive innovation and interoperability across the mobile ecosystem.

In August 2021, Syniverse announced its plan to go public through a merger agreement with M3-Brigade Acquisition II Corp. (NYSE:MBAC). On January 10, 2022, Syniverse and MBAC announced that MBAC's special meeting of shareholders to approve the merger is scheduled to be held on February 9, 2022. On January 7, 2022, MBAC commenced mailing of its definitive proxy statement to its shareholders of record as of January 6, 2022. Upon closing of the transaction, the renamed Syniverse Technologies Corporation will be listed on the New York Stock Exchange under the ticker "SYNV."

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Supporting Quotes

• Cameron Dunn, Director of Mobility Inter-Carrier Architecture and Development, AT&T

"Over the past few years, AT&T has been in the process of phasing out its 3G network in order to accommodate next generation technology and services, like 5G, and give our customers a better network experience. To ensure voice roaming services after a circuit-switch decommission, we collaborated with Syniverse to create an innovative solution that could preserve customer experience. AT&T is very pleased with this solution as a ‘tool in the toolbox' to avoid disruptions caused by network decommissions."

• Bob Chiodo, General Manager of Americas Carrier Division, Syniverse

"We are extremely pleased with the work our teams at Syniverse and AT&T have accomplished with this revolutionary offering involving Syniverse's Evolved Mobility and 3G-to-VoLTE technology innovations. This is another excellent example demonstrating our dedication to our carrier customers and putting them at the center of everything we do."

Digital Assets

• [Photo] Bob Chiodo
• [Image] Syniverse logo

Supporting Resources

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• Read and subscribe to the Syniverse Blog.
• Read and subscribe to Syniverse news releases.
• For more information about Syniverse's news and activities, follow the company on Twitter, LinkedIn and Facebook.

About Syniverse

Syniverse is a leading global provider of unified, mission-critical platforms enabling seamless interoperability across the mobile ecosystem. Syniverse makes global mobility work by enabling consumers and enterprises to connect, engage, and transact seamlessly and securely. Syniverse offers a premier communications platform that serves both enterprises and carriers globally and at scale. Syniverse's proprietary software, protocols, orchestration capabilities and network assets have allowed Syniverse to address the changing needs of the mobile ecosystem for more than 30 years. Syniverse continues to innovate by harnessing the potential of emerging technologies such as 5G, IoT, RCS and CPaaS for its customers.

Forward-Looking Statements

This press release may contain "forward-looking statements" within the meaning of the "safe harbor" provisions of the Private Securities Litigation Reform Act of 1995. The expectations, estimates and projections of the businesses of MBAC or Syniverse may differ from their actual results and consequently you should not rely on these forward-looking statements as predictions of future events. Words such as "expect," "estimate," "project," "budget," "forecast," "anticipate," "intend," "plan," "may," "will," "would," "could," "should," "believes," "predicts," "potential," "continue," and similar expressions are intended to identify such forward-looking statements. These forward-looking statements include, without limitation, expectations with respect to future performance of MBAC and Syniverse and anticipated financial impacts of the proposed transaction, the satisfaction of the closing conditions to the proposed transaction and the timing of the completion of the proposed transaction.

These forward-looking statements are not guarantees of future performance, conditions, or results, and involve significant risks and uncertainties that could cause the actual results to differ materially from the expected results. Most of these factors are outside of the control of MBAC and Syniverse and are difficult to predict. Factors that may cause such differences include, but are not limited to: (1) the inability to complete the transactions contemplated by the agreement and plan of merger with respect to the proposed transaction (the "Merger Agreement"), including due to failure to obtain approval of the stockholders of MBAC or other conditions to closing in the Merger Agreement; (2) the outcome of any legal proceedings that may be instituted against the parties following announcement of the Merger Agreement and the proposed transactions contemplated thereby; (3) the ability to recognize the anticipated benefits of the proposed business combination, which may be affected by, among other things, competition, the ability of the post-combination company to grow and manage growth profitably, maintain relationships with customers and suppliers and retain its management and key employees; (4) the occurrence of any event, change or other circumstances that could give rise to the termination of the Merger Agreement and the proposed transactions contemplated thereby; (5) risks related to the uncertainty of the projected financial information with respect to Syniverse; (6) the inability to obtain or maintain the listing of the post-acquisition company's Class A Stock and public warrants on the NYSE following the proposed business combination; (7) risks related to the post-combination company's ability to raise financing in the future; (8) the post-combination company's success in retaining or recruiting, or changes required in, our officers, key employees or directors following the proposed business combination; (9) our directors and officers potentially having conflicts of interest with our business or in approving the proposed business combination; (10) intense competition and competitive pressures from other companies in the industry in which the post-combination company will operate; (11) the business, operations and financial performance of Syniverse, including market conditions and global and economic factors beyond Syniverse's control; (12) the effect of legal, tax and regulatory changes; (13) the receipt by MBAC or Syniverse of an unsolicited offer from another party for an alternative business transaction that could interfere with the proposed business combination; (14) the risk that the proposed business combination disrupts current plans and operations of MBAC or Syniverse as a result of the announcement and consummation of the transactions described herein; (15) costs related to the proposed business combination; (16) changes in applicable laws or regulations; (17) the possibility that MBAC or Syniverse may be adversely affected by other economic, business, and/or competitive factors; (18) the amount of redemption requests made by MBAC's public stockholders; (19) the impact of the continuing COVID-19 pandemic on MBAC, Syniverse and Syniverse's projected results of operations, financial performance or other financial metrics or on any of the foregoing risks; and (20) other risks and uncertainties disclosed in MBAC's Quarterly Reports on Form 10-Q and the proxy statement, discussed above, including those under "Risk Factors," and other documents filed or to be filed with the SEC by MBAC.

MBAC and Syniverse caution that the foregoing list of factors is not exclusive. You should not place undue reliance upon any forward-looking statements, which speak only as of the date made. Syniverse and MBAC do not undertake or accept any obligation or undertaking to release publicly any updates or revisions to any forward-looking statements to reflect any change in their expectations or any change in events, conditions, or circumstances on which any such statement is based.

Information About the Proposed Transaction and Where to Find It

In connection with the proposed transaction, MBAC has filed a definitive proxy statement with the SEC. MBAC's stockholders and other interested persons are advised to read the definitive proxy statement and documents incorporated by reference therein filed in connection with the proposed transaction, as these materials will contain important information about MBAC, Syniverse and the proposed transaction. MBAC has commenced mailing of the definitive proxy statement to the stockholders of MBAC as of January 6, 2022, the record date established for the proposed transaction. MBAC Stockholders will also be able to obtain copies of the definitive proxy statement and other documents filed with the SEC that will be incorporated by reference therein, without charge at the SEC's website at https://www.sec.gov/, or by directing a request to: M3-Brigade Acquisition II Corp., 1700 Broadway – 19th Floor, New York, New York 10019.

Participants in the Solicitation

MBAC and its directors and executive officers may be deemed participants in the solicitation of proxies of MBAC's stockholders with respect to the proposed transaction. A list of those directors and executive officers and a description of their interests in MBAC have been filed in the proxy statement for the proposed transaction and are available at https://www.sec.gov/. Additional information regarding the interests of such participants is contained in the proxy statement.

Syniverse and its directors and executive officers may also be deemed to be participants in the solicitation of proxies from the stockholders of MBAC in connection with the proposed transaction. A list of the names of such directors and executive officers and information regarding their interests in the proposed transaction have been included in the proxy statement for the proposed business combination.

No Offer or Solicitation

This press release shall not constitute a solicitation of a proxy, consent, or authorization with respect to any securities or in respect of the proposed transaction. This press release shall not constitute an offer to sell or the solicitation of an offer to buy any securities, nor shall there be any sale of securities in any states or jurisdictions in which such offer, solicitation, or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. No offering of securities shall be made except by means of a prospectus meeting the requirements of Section 10 of the Securities Act of 1933, as amended.

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