Company: SONM
Filing Date: 2025-06-18
Form Type: DEFA14A
Source: 0001641172-25-015641
Chunk: 3

Company: SONIM TECHNOLOGIES INC
Filing Date: 2025-06-18
Form: DEFA14A
Chunk 3
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 strategy aimed at derailing Sonim’s strategic alternatives process.

Sonim Nominees Are Independent, Credible, and Committed to Your Interests

Unlike Orbic’s director nominees, Sonim’s director nominees are fully independent and have no affiliations with Orbic or any counterparties to potential strategic transactions. They are committed to acting solely in the best interests of all stockholders. The Special Committee, in cohesion with its financial and legal advisers, continuously works to provide value to the Sonim stockholders.

<div align='center'>YOUR VOTE MATTERS:

VOTE THE WHITE PROXY CARD TODAY</div>

Sonim’s Board of Directors urges stockholders to only use the WHITEproxy card to vote “FOR” election of Sonim’s director nominees — James Cassano, Peter Liu, Mike Mulica, Jack Steenstra, and George Thangadurai.

If you receive a BLUE proxy card from the Orbic Group, please disregard it.

The Board strongly recommends that stockholders protect their investment in Sonim by casting their vote as soon as possible, regardless of plans to attend the Annual Meeting on July 18, 2025.

Sincerely,

The Sonim Special Committee

<div align='center'>For more information or assistance with voting your shares, please call the Company’s proxy solicitor:

430 Park Avenue, 14th Floor,

New York, NY 10022

Banks and Brokers Call: (203) 658-9400

Stockholders Call Toll Free: (800) 662-5200

E-mail: SONM@investor.sodali.com</div>

About Sonim Technologies

Sonim Technologies is a leading U.S. provider of rugged mobile solutions, including phones, wireless internet data devices, accessories and software designed to provide extra protection for users that demand more durability in their work and everyday lives. Trusted by first responders, government, and Fortune 500 customers since 1999, we currently sell our ruggedized mobility solutions through tier one wireless carriers and distributors in North America, EMEA, and Australia/New Zealand. Sonim devices and accessories connect users with voice, data, workflow and lifestyle applications that enhance the user experience while providing an extra level of protection. For more information, visit www.sonimtech.com.

Forward-Looking Statements

This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended. These statements relate to, among other things, the outcome of negotiations with Orbic and