Exhibit 1

Joint Filing Agreement

This will confirm the agreement by and among the undersigned that the Schedule 13D filed with the Securities and Exchange Commission on or about the date hereof with respect to the beneficial ownership by the undersigned of the ordinary shares of 87.5 pence per share, of telent plc, a public limited company incorporated in England and Whales with registered number 67307, is being filed, and all amendments thereto will be filed, on behalf of each of the persons and entities named below in accordance with Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended. This Agreement may be executed in two or more counterparts, each of which shall be deemed an original, but all of which together shall constitute one and the same instrument.

Date: July 17, 2006	POLYGON GLOBAL OPPORTUNITIES MASTER FUND

	By Polygon Investment Partners LLP, its investment manager


	By	/s/ Patrick G. G. Dear
		Name: Patrick G. G. Dear
		Title: Principal


Date: July 17, 2006	POLYGON INVESTMENT MANAGEMENT LIMITED


	By	/s/ Patrick G. G. Dear
		Name: Patrick G. G. Dear
		Title: Principal


Date July 17, 2006	POLYGON INVESTMENTS LTD.


	By	/s/ Patrick G. G. Dear
		Name: Patrick G. G. Dear
		Title: Principal


Date July 17, 2006	POLYGON INVESTMENTS PARTNERS LLP


	By	/s/ Patrick G. G. Dear
		Name: Patrick G. G. Dear
		Title: Principal


Date July 17, 2006	POLYGON INVESTMENTS PARTNERS LP


	By	/s/ Patrick G. G. Dear

		Name: Patrick G. G. Dear
		Title: Principal


Date July 17, 2006	POLYGON INVESTMENTS PARTNERS GP, LLC


	By	/s/ Patrick G. G. Dear
		Name: Patrick G. G. Dear
		Title: Principal


Date July 17, 2006		/s/ Reade E. Griffith
		Reade E. Griffith


Date July 17, 2006		/s/ Alexander E. Jackson
		Alexander E. Jackson


Date July 17, 2006		/s/ Patrick G. G. Dear
		Patrick G. G. Dear

telent plc SC 13D