FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  B. Riley Financial, Inc.
 2. Date of Event Requiring Statement (Month/Day/Year)
05/09/2019		 3. Issuer Name and Ticker or Trading Symbol
SONIM TECHNOLOGIES INC [SONM]
(Last)
(First)
(Middle)
21255 BURBANK BLVD., SUITE 400		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director __X__ 10% Owner
_____ Officer (give title below) _____ Other (specify below)
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

WOODLAND HILLS, CA 91367		 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 1,139,085
D
 
Common Stock 1,073,658
I
By BRC Partners Opportunity Fund, L.P. (1)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Convertible Promissory Note (right to buy) 04/09/2018 09/01/2022 Common Stock 1,099,278 $ 8.87 I By B. Riley Principal Investments, LLC (1)

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
B. Riley Financial, Inc.
21255 BURBANK BLVD., SUITE 400
WOODLAND HILLS, CA 91367		     X    
BRC Partners Opportunity Fund, LP
11100 SANTA MONICA BLVD., SUITE 800
LOS ANGELES, CA 90025		     X    
B. RILEY CAPITAL MANAGEMENT, LLC
21255 BURBANK BLVD., SUITE 400
WOODLAND HILLS, CA 91367		     X    
BRC Partners Management GP, LLC
11100 SANTA MONICA BLVD., SUITE 800
LOS ANGELES, CA 90025		     X    
B. RILEY PRINCIPAL INVESTMENTS, LLC
11100 SANTA MONICA BLVD., SUITE 800
LOS ANGELES, CA 90025		     X    
RILEY BRYANT R
21255 BURBANK BLVD., SUITE 400
WOODLAND HILLS, CA 91367		     X    

Signatures

B. Riley Financial, Inc., by: /s/ Bryant R. Riley, Co-Chief Executive Officer 05/09/2019
**Signature of Reporting Person Date
BRC Partners Opportunity Fund, L.P., by: /s/ Bryant R. Riley, Chief Investment Officer 05/09/2019
**Signature of Reporting Person Date
B. Riley Capital Management, LLC, by: /s/ Bryant R. Riley, Chief Executive Officer 05/09/2019
**Signature of Reporting Person Date
BRC Partners Management GP, LLC, by: /s/ B Riley Capital Management, LLC, its sole member, by: /s/ Bryant R. Riley, Chief Executive Officer 05/09/2019
**Signature of Reporting Person Date
B. Riley Principal Investments, LLC, by: /s/ Kenney Young, Chief Executive Officer 05/09/2019
**Signature of Reporting Person Date
/s/ Bryant R. Riley 05/09/2019
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) BRC Partners Management GP, LLC is the general partner of BRC Partners Opportunity Fund, LP. B. Riley Asset Management, a division of B. Riley Capital Management, LLC, is the investment manager of BRC Partners Opportunity Fund, LP. B. Riley Capital Management, LLC is the sole member of BRC Partners Management GP, LLC and a wholly-owned subsidiary of B. Riley Financial, Inc. Bryant Riley, as Chief Executive Officer of B. Riley Capital Management, LLC and Chairman and Co-Chief Executive Officer of B. Riley Financial, Inc., has voting and dispositive power over the shares held by BRC Partners Opportunity Fund, L.P. and B. Riley Financial, Inc. B. Riley Principal Investments, LLC is a wholly-owned subsidiary of B. Riley Financial, Inc. Each reporting person disclaims beneficial ownership of the securities of the Issuer reported herein held indirectly except to the extent of such person's pecuniary interest therein.

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