EXHIBIT 23.1
CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM
We consent to the incorporation by reference in the following Registration
Statements of our report dated January 30, 2004, except for Note 19, as to which
the date is November 30, 2004, with respect to the consolidated financial
statements of TeleCommunication Systems, Inc. for the year ended December 31,
2003, included in its Current Report on Form 8-K dated December 8, 2004.
REGISTRATION STATEMENTS ON FORM S-3
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Registration Number Date Filed
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333-119431 November 16, 2004
333-119431 October 1, 2004
333-112759 April 9, 2004
333-112759 February 12, 2004
333-104305 April 4, 2003
REGISTRATION STATEMENTS ON FORM S-8
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Name Registration Number Date Filed
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TeleCommunication Systems, Inc. Fourth Amended and
Restated 1997 Stock Incentive Plan 333-118610 August 27, 2004
TeleCommunication Systems, Inc.
Third Amended and Restated 1997 Stock Incentive Plan 333-107466 July 30, 2004
TeleCommunication Systems, Inc.
Amended and Restated 1997 Stock Incentive Plan 333-66676 August 3, 2001
Xypoint Corporation 2000 Stock Plan; Xypoint
Corporation 1997 Stock Plan, As Amended; and
Xypoint Corporation 1995 Stock Plan 333-51656 February 26, 2001
TeleCommunication Systems, Inc. Amended and Restated
1997 Stock Incentive Plan and TeleCommunication
Systems, Inc. Employee Stock Purchase Plan 333-48026 October 16, 2000
/s/ Ernst & Young LLP
Baltimore, Maryland
December 7, 2004