telent plc

Board Changes

London - 05 September 2006 - telent plc (LSE: TLNT) (“telent”). telent announces a number of changes to the Board of Directors:

Mark Plato has been appointed Chief Executive Officer in succession to Mike Parton and will assume the role with immediate effect. Mike Parton will remain with telent until 31 October 2006 but will step down from the Board immediately.

Pavi Binning will step down from the Board and the role of Chief Financial Officer. Heather Green will assume the role with immediate effect. Pavi Binning will remain an employee of telent until 30 November 2006 to ensure an orderly handover of responsibilities.

Both Mark Plato and Heather Green have been with the business for a number of years having joined what was Marconi in 1995 and 2001 respectively.

Mark Plato has been Managing Director of telent, and previously of the services business of Marconi, since September 2002. Heather Green was previously Group Financial Controller and has a background in finance and investor relations within Marconi and prior to this at Alstom.

In addition, Kathleen Flaherty, a non-executive director, has decided not to stand for re-appointment at the 2006 Annual General Meeting and will retire from the Board at the conclusion of the AGM to be held on 20 October 2006.

John Devaney, Chairman of telent said:

“We have today announced a series of Board changes that ensure telent has the most appropriate team in place to take the business forward over the longer-term as an independent communications services company.

“I would like to thank Mike and Pavi for their huge contributions in successfully restructuring the balance sheet, completing the Ericsson transaction, securing the UK Pension Plan and putting telent plc in a strong position for the future. I would also like to thank Kathleen for all her guidance, especially in relation to US markets.

“At the same time, I am delighted that Mark Plato and Heather Green have accepted the Board’s invitation to take up the roles of Chief Executive Officer and Chief Financial Officer respectively. I very much look forward to working with both of them in the years to come.”

The Board will now consist of John Devaney, Chairman; Mark Plato, Chief Executive Officer; Heather Green, Chief Financial Officer; Kent Atkinson, Senior Independent Director and Chair of the Audit Committee; Peter Hickson, Non-Executive Director and Chair of the Remuneration Committee; Werner Koepf, Non-Executive Director; Douglas McWilliams, Non-Executive Director and Kathleen Flaherty, Non-Executive Director (until 20 October).

telent can confirm that there are no details to be disclosed in respect of either Mr Plato or Ms Green pursuant to paragraph 9.6.13 of the Listing Rules.

Press enquiries:

Geoff Callow - tel: +44 (0) 20 7861 3232; mobile: +44 (0) 7740 168 319;

email: gcallow@bell-pottinger.co.uk

Chris Hamilton - tel: +44 (0) 20 7861 3232; mobile: +44 (0) 870 257 276;

Email: chamilton@bell-pottinger.co.uk