Exhibit 12.1

Supplemental Financial Schedule II

TeleCommunication Systems, Inc.
Valuation and Qualifying Accounts
(amounts in thousands)

Column A	Column B		Column C		Column D			Column E
	Balance		Additions,
	Beginning		Costs, and					Balance End
Description	of Year		Expenses		Deductions			of Year
Year ended December 31, 2005
Allowance for Doubtful Accounts	$	690		243	$	(700	)	$	233
Year ended December 31, 2004
Allowance for Doubtful Accounts	$	393	$	556	$	(259	)	$	690
Year ended December 31, 2003
Allowance for Doubtful Accounts	$	361	$	357	$	(325	)	$	393

Schedules other than those listed above are omitted because of the absence of the conditions under which they are required or because the information called for is included in the consolidated financial statements or notes thereto.