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________________________________________________________________________________

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549



FORM 10-K/A
AMENDMENT NO. 2

|                                                |  |                                                                                                 
|----------------------------------------------- |  | ------------------------------------------------------------------------------------------------
|(Mark One)                                      |  |                                                                                                 
|                                               
|x                                               |  | ANNUAL REPORT PURSUANT TO
    SECTION 13 OR 15(d) OF
    THE SECURITIES EXCHANGE ACT OF 1934    
|For the year ended
    December 31, 2004
    OR
|o                                               |  | TRANSITION REPORT PURSUANT TO
    SECTION 13 OR 15(d) OF
    THE SECURITIES EXCHANGE ACT OF 1934

Commission File No. 0-30821


TELECOMMUNICATION SYSTEMS, INC.




|                                                                               |  |                                                   
|------------------------------------------------------------------------------ |  | --------------------------------------------------
|Maryland(State or Other
    Jurisdiction of Incorporation or Organization)     |  | 52-1526369(I.R.S. Employer
    Identification No.)
|275 West Street, Annapolis,
    MD(Address of principal
    executive offices) |  | 21401(Zip Code)                                   

(410) 263-7616








x o


o


x o






DOCUMENTS INCORPORATED BY REFERENCE


|                                                                                                 |  |                                         
|------------------------------------------------------------------------------------------------ |  | ----------------------------------------
|Document                                                                                         |  | Part of 10-K into which
    incorporated
|Proxy statement related to
registrants Annual Meetingof Stockholders to be held on
June 9, 2005 |  | Part III                                











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##### 










Explanatory Note







SIGNATURES






| |                                
| | -------------------------------
| | TeleCommunication Systems, Inc.



| |     |                   
| | --- | ------------------
| | By: | /s/Maurice B. Tosé

| |                                       
| | --------------------------------------
| |                                       
| | Maurice B. Tosé                       
| | Chief Executive Officer, President and
| | Chairman of the Board                 



|                                                                               |  |                                                                                                |  |               
|------------------------------------------------------------------------------ |  | ---------------------------------------------------------------------------------------------- |  | --------------
|Name                                                                           |  | Title                                                                                          |  | Date          
|                                                                               |  |                                                                                                |  |               
|/s/
    Maurice B. ToséMaurice
    B. Tosé                                     |  | Chief Executive Officer, President
    and Chairman of the Board (Principal Executive Officer) |  | April 11, 2005
|                                                                              
|/s/
    Thomas M.
    Brandt, Jr.Thomas
    M. Brandt, Jr.                     |  | Chief Financial Officer and Senior
    Vice President (Principal Financial Officer)            |  | April 11, 2005
|                                                                              
|/s/
    Clyde A. Heintzelman*Clyde
    A. Heintzelman                          |  | Director                                                                                       |  | April 11, 2005
|                                                                              
|/s/
    Richard A. Kozak*Richard
    A. Kozak                                  |  | Director                                                                                       |  | April 11, 2005
|                                                                              
|/s/
    Weldon H. Latham*Weldon
    H. Latham                                  |  | Director                                                                                       |  | April 11, 2005
|                                                                              
|/s/
    Byron F. Marchant*Byron
    F. Marchant                                |  | Director                                                                                       |  | April 11, 2005
|                                                                              
|*By /s/
    Thomas M. Brandt, Jr.Thomas
    M. Brandt, Jr. as attorney-in-fact |  |                                                                                                |  |               





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EXHIBIT INDEX

|        |      |  |             |                                                                                                                        
|------- | ---- |  | ----------- | -----------------------------------------------------------------------------------------------------------------------
|Exhibit |      |  |            
|No.     |      |  | Description
|       
|        | 31.1 |  |             | Certification pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 302 of the Sarbanes Oxley Act of 2002.
|       
|        | 31.2 |  |             | Certification pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 302 of the Sarbanes Oxley Act of 2002.
|       
|        | 32.1 |  |             | Certification pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.
|       
|        | 32.2 |  |             | Certification pursuant to 18 U.S.C. Section 1350, as
adopted pursuant to Section 906 of the Sarbanes Oxley Act of 2002.