Company: SONM
Filing Date: 2025-07-01
Form Type: POS AM
Source: 0001641172-25-017379
Chunk: 0

Company: SONIM TECHNOLOGIES INC
Filing Date: 2025-07-01
Form: POS AM
Chunk 0
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Registration No. 333-288221

<div align='center'>As filed with the Securities and Exchange Commission on July 1, 2025

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

POST-EFFECTIVE AMENDMENT NO. 1

FORM S-1

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933

Sonim Technologies, Inc.

(Exact name of registrant as specified in its charter)</div>

| Delaware                       |     |                3661 |     | 94-3336783     |
| (State                         
 or other jurisdiction          
 of                             
 incorporation or organization) |     |            -Primary 
 Standard Industrial 
      Classification 
         Code Number |     | -I.R.S.        
 Employer       
 Identification 
 Number         |

<div align='center'>4445 Eastgate Mall, Suite 200

San Diego, CA 92121

Telephone: (650) 378-8100

(Address, including zip code, and telephone number, including area code, of registrant’s principal executive offices)

Peter Liu

Chief Executive Officer

4445 Eastgate Mall, Suite 200

San Diego, CA 92121

Telephone: (650) 378-8100

(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:</div>

| William                    
 N. Haddad, Esq.            
 Kirill                     
 Y. Nikonov, Esq.           
 Venable                    
 LLP                        
 151                        
 W. 42nd Street, 49th Floor 
 New                        
 York, NY 10036             
 Telephone:                 
 (212) 307-5500             | M.                       
 Ali Panjwani, Esq.       
 Pryor Cashman LLP        
 7 Times Square           
 New York, New York 10036 
 (212) 421-4100           |

Approximate date of commencement of proposed sale to the public: As soon as practicable after the effective date of this registration statement.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, please check the following box: ☒

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier