<SEC-DOCUMENT>0001493152-25-029233.txt : 20251229
<SEC-HEADER>0001493152-25-029233.hdr.sgml : 20251229
<ACCEPTANCE-DATETIME>20251229085959
ACCESSION NUMBER:		0001493152-25-029233
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20251229
DATE AS OF CHANGE:		20251229

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SONIM TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0001178697
		STANDARD INDUSTRIAL CLASSIFICATION:	TELEPHONE & TELEGRAPH APPARATUS [3661]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				943336783
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-38907
		FILM NUMBER:		251603650

	BUSINESS ADDRESS:	
		STREET 1:		4445 EASTGATE MALL
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		650-378-8100

	MAIL ADDRESS:	
		STREET 1:		4445 EASTGATE MALL
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>formdefa14a.htm
<DESCRIPTION>DEFA14A
<TEXT>
<HTML>
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<P STYLE="text-align: center; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>UNITED
STATES</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>SECURITIES
AND EXCHANGE COMMISSION</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 12pt"><B>Washington,
D.C. 20549</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>SCHEDULE
14A</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Proxy
Statement Pursuant to Section 14(a) of the</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Securities
Exchange Act of 1934</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Filed
by the Registrant &#9746;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Filed
by a Party other than the Registrant &#9744;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Check
the appropriate box:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; text-align: left; margin-top: 0pt; margin-bottom: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Preliminary
    Proxy Statement</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Confidential,
    for Use of the Commission Only (as permitted by Rule 14a-6(e)(2))</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Definitive
    Proxy Statement</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9746;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Definitive
    Additional Materials</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></TD></TR>
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Soliciting
    Material under &sect;240.14a-12</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 18pt"><B>Sonim
Technologies, Inc.</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Name
of Registrant as Specified In Its Charter)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center">&nbsp;</P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>(Name
of Person(s) Filing Proxy Statement, if other than the Registrant)</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt; text-align: center"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>&nbsp;</B></FONT></P>

<P STYLE="text-align: left; font: 10pt Times New Roman, Times, Serif; margin: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Payment
of Filing Fee (Check all boxes that apply):</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<TABLE CELLSPACING="0" CELLPADDING="0" STYLE="font: 10pt Times New Roman, Times, Serif; width: 100%; border-collapse: collapse">
  <TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9746;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">No
    fee required</FONT></TD></TR>

<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Fee
    paid previously with preliminary materials</FONT></TD></TR>

<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif">&nbsp;</TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif">&nbsp;</TD></TR>
<TR STYLE="font: 10pt Times New Roman, Times, Serif; vertical-align: top">
    <TD STYLE="font: 10pt Times New Roman, Times, Serif; width: 0.25in"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&#9744;</FONT></TD>
    <TD STYLE="text-align: justify; font: 10pt Times New Roman, Times, Serif"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Fee
    computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11</FONT></TD></TR>
  </TABLE>
<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Dear
Sonim Team,</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">If
you own shares of Sonim stock, then please vote on the current proxy before the December 29, 2025 deadline. If you have your shares with
E-Trade, then you should have received an email from E-Trade around December 12, 2025. Please follow the instructions in the email to
vote. If you did not receive an email, then please contact Sonim&rsquo;s solicitor Sodali to get your voting information at:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sodali</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">430
Park Avenue, 14th Floor,<BR>
New York, NY 10022<BR>
Banks and Brokers Call: (203) 658-9400<BR>
Stockholders Call Toll Free: (800) 662-5200<BR>
E-mail: <U>SONM@investor.sodali.com</U></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sonim&rsquo;s
management and Board of Directors recommend that you vote <B>FOR</B> the following proposals:</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proposal
1 &mdash; The Asset Sale Proposal</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proposal
2 &mdash; The Advisory Compensation Proposal</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proposal
3 &mdash; The Adjournment Proposal</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Proposal
1 is to approve the sale of Sonim&rsquo;s assets to Nexa (Social Mobile). Passing this proposal will ensure that the Sonim brand will
continue and that many Sonim employees can continue to support Sonim products.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sonim&rsquo;s
management and Board of Directors recommend that you vote FOR Proposals 1, 2, and 3.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left; background-color: white"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">It
is very important that everyone votes. Please read the materials and cast your vote as soon as you can.</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Important
Additional Information</B></FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: justify"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">&nbsp;</FONT></P>

<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">This
communication relates to the proposed transaction involving Sonim. In connection with the proposed transaction, Sonim has filed with
the SEC the proxy statement relating to a special meeting of its stockholders, as supplemented by the proxy supplement dated December
19, 2025 (collectively, the &ldquo;Proxy Statement&rdquo;), and may file other documents with the SEC relating to the proposed transaction.
Except for the changes to the Proxy Statement referenced in this communication, this communication is not a substitute for the Proxy
Statement or any other document that Sonim may file with the SEC or send to its stockholders in connection with the proposed transaction.
<B>Before making any voting decision, stockholders of Sonim are urged to read the Proxy Statement in its entirety and any other relevant
documents filed or to be filed with the SEC and any amendments or supplements thereto and any documents incorporated by reference therein,
because they will contain important information about the proposed transaction and the parties to the proposed transaction.</B> Any vote
in respect of resolutions to be proposed at a stockholder meeting of Sonim to approve the proposed transaction or related matters, or
other responses in relation to the proposed transaction, should be made only on the basis of the information contained in the Proxy Statement.
Investors and security holders can obtain the Proxy Statement and other documents Sonim files with the SEC (when available) free of charge
at the SEC&rsquo;s website (http://www.sec.gov) or at Sonim&rsquo;s investor relations website (https:// https://ir.sonimtech.com/) or
by e-mailing Sonim at <U>ir@sonimtech.com</U>.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt"><B>Participants
in the Solicitation</B></FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Sonim
and its respective directors, executive officers, and other members of their management and employees, including Peter Liu (Chief Executive
Officer and a director), Clay Crolius (Chief Financial Officer), Mike Mulica (Executive Chairman), and Sonim&rsquo;s directors &mdash;
James Cassano, Jack Steenstra, and George Thangadurai &mdash; under SEC rules, may be deemed to be participants in the solicitation of
proxies of Sonim&rsquo;s stockholders in connection with the proposed transaction.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Stockholders
may obtain more detailed information regarding Sonim&rsquo;s directors and executive officers, including a description of their
direct or indirect interests, by security holdings or otherwise, under the captions &ldquo;<I><A HREF="https://www.sec.gov/Archives/edgar/data/1178697/000164117225015578/formdefc14a.htm#a_025" STYLE="-sec-extract: exhibit">Directors,
Executive Officers, and Corporate Governance</A></I>,&rdquo; and &ldquo;<I><A HREF="https://www.sec.gov/Archives/edgar/data/1178697/000164117225015578/formdefc14a.htm#a_052" STYLE="-sec-extract: exhibit">Certain
Relationships and Related Party Transactions</A></I>&rdquo;&#8239;&#8239; of Sonim&rsquo;s definitive proxy statement for the 2025
Annual Meeting filed with the SEC on June 18, 2025 and &ldquo;<I><A HREF="https://www.sec.gov/Archives/edgar/data/1178697/000149315225028458/formdefa14a.htm#sd_001" STYLE="-sec-extract: exhibit">Security
Ownership of Certain Beneficial Owners and Management</A></I>&rdquo; of this the proxy stated supplement dated December 19,
2025.</FONT></P>

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<P STYLE="font: 10pt Times New Roman, Times, Serif; margin: 0pt; text-align: left"><FONT STYLE="font-family: Times New Roman, Times, Serif; font-size: 10pt">Other
information regarding the participants in the proxy solicitation and a description of their direct and indirect interests, by security
holdings or otherwise, is set forth in the Proxy Statement or other materials to be filed with the SEC in connection with the proposed
transaction, if and when they become available. These documents will be available free of charge as described above.</FONT></P>

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