Company: SONM
Filing Date: 2025-09-09
Form Type: PRE 14A
Source: 0001493152-25-012903
Chunk: 4

Company: SONIM TECHNOLOGIES INC
Filing Date: 2025-09-09
Form: PRE 14A
Chunk 4
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 proxy were first sent or given to stockholders on or about September [XX], 2025.

The mailing address of our principal executive offices is Sonim Technologies, Inc., 4445 Eastgate Mall, Suite 200, San Diego, California 92121.

<div align='center'>IMPORTANT INFORMATION REGARDING DELIVERY OF PROXY MATERIALS</div>

Under the Securities and Exchange Commission (the “SEC”) rules, a company
may select either of the following options for making proxy materials available to its stockholders:

| ● | the full set delivery option; or                        |
| ● | the option often referred to as the “notice and access” 
 option or the “notice-only” option.                     |

A company may use a single
method for all of its stockholders or use full set delivery for some while adopting the notice-only option for others.

Full set delivery option

Under the full set delivery
option, a company delivers all proxy materials to its stockholders by mail. In addition to delivery of proxy materials to stockholders,
a company must post all proxy materials on a publicly accessible website and provide information to stockholders about how to access
the website. In connection with the Special Meeting, we have elected to use the full set delivery option. Accordingly, you will
receive all proxy materials by mail.

Notice-only option

Under the notice-only option,
which we have elected NOT to use for the Special Meeting, a company must post all proxy materials on a publicly-accessible website.
Instead of delivering proxy materials to its stockholders, a company may deliver a notice of Internet availability of proxy materials,
which includes, among other things:

| ● | information regarding the date and time of the meeting of stockholders, as well as the items to be considered at the meeting; |
| ● | information regarding the website where the proxy materials are                                                               
 posted; and                                                                                                                   |
| ● | various means by which a stockholder can request paper or e-mail                                                              
 copies of the proxy materials.                                                                                                |

If a stockholder requests
paper copies of the proxy materials, these materials must be sent to the stockholder within three business days and by first class mail.

Use the notice and access option in the future

Although we have elected to use
the full set delivery option in connection with the Special Meeting, we may choose to use the notice-only option in the future. By reducing
the amount of materials that a company needs to print and mail, the notice and access option provides an opportunity for cost savings
as