SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                   ----------

                                    FORM 8-K

                Current Report Pursuant to Section 13 or 15(d) of
                       The Securities Exchange Act of 1934

                                  June 30, 2004

                                 Date of Report
                        (Date of earliest event reported)

                         TeleCommunication Systems, Inc.
                         -------------------------------
             (Exact name of registrant as specified in its charter)

         Maryland                        0-30821                  52-1526369
(State or Other Jurisdiction     (Commission File Number)       (IRS Employer
     of Incorporation)                                       Identification No.)

                   275 West Street, Annapolis, Maryland 21401
               (Address of principal executive offices) (Zip code)

       Registrant's telephone number, including area code: (410) 263-7616

                                       N/A
          (Former Name or Former Address, if Changed Since Last Report)



Item 7. Financial Statements and Exhibits.

      (a)   Financial statements of business acquired.

            Not applicable.

      (b)   Pro forma financial information.

            Not applicable.

      (c)   Exhibits.

      The following  material is not filed but is furnished  pursuant to Item 12
as an exhibit in this Current Report on Form 8-K.

          Exhibit       Description
          -------       -----------
          99            Press release of TeleCommunication  Systems,  Inc. dated
                        June 30, 2004.

Item 12. Results of Operations and Financial Condition.

      On June 30, 2004,  TeleCommunication  Systems, Inc. issued a press release
announcing  information concerning its revenue and earnings expectations for the
quarter ended June 30, 2004 and certain other information.  A copy of this press
release is being furnished herewith as Exhibit 99 and is hereby  incorporated by
reference.

      Pursuant  to  General  Instruction  B(6)  to  Form  8-K,  the  information
furnished in this Item 12,  including  the exhibit  listed  below,  shall not be
deemed "filed" for the purposes of Section 18 of the Securities  Exchange Act of
1934, as amended (the "Exchange Act") or otherwise subject to the liabilities of
that  section and shall not be deemed to be  incorporated  by  reference  in any
other filing under the Securities  Act of 1933, as amended,  or the Exchange Act
unless the  registrant  specifically  incorporates  this item in a filing  under
either of such acts.


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                                   SIGNATURES

      Pursuant to the  requirements  of the Securities  Exchange Act of 1934, as
amended,  the  Registrant has duly caused this report to be signed on its behalf
by the undersigned hereunto duly authorized.

                                         TELECOMMUNICATIONS SYSTEMS, INC.

Date: July 1, 2004                       By: /s/ Thomas M. Brandt, Jr.
                                             -----------------------------------
                                             Name:  Thomas M. Brandt, Jr.
                                             Title: Senior Vice President
                                                    and Chief Financial Officer


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                                  EXHIBIT INDEX

          Exhibit       Description
          -------       -----------
          99            Press release of TeleCommunication  Systems,  Inc. dated
                        June 30, 2004.