FORM 6-K SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Report of Foreign Issuer Pursuant to Rule 13a-16 or 15d-16 of the Securities Exchange Act of 1934 For the month of December, 2004 COLT TELECOM GROUP plc (Translation of Registrant's Name into English) Beaufort House 15 St. Botolph Street London EC3A 7QN England _________________________________ (Address of Principal Executive Offices) (Indicate by check mark whether the Registrant files or will file annual reports under cover of Form 20-F or Form 40-F.) Form 20-F..X... Form 40-F..... (Indicate by check mark whether the Registrant by furnishing the information contained in this Form is also thereby furnishing the information to the Commission pursuant to Rule 12g3-2(b) under the Securities Exchange Act of 1934) Yes ..... No ..X... (If "Yes" is marked, indicate below the file number assigned to the Registrant in connection with Rule 12g3-2(b): 82- ________) This Form 6-K shall be deemed to be incorporated by reference in the Registrant's Registration Statement on Form F-3 (Reg. No.333-05972), in the Registrant's Registration Statement on Form S-8 (Reg. No.333-8362) 14 December 2004 COLT ANNOUNCES EARLY REDEMPTION OF THE GBP50 MILLION 10.125% SENIOR NOTES DUE 2007 AND THE DM150 MILLION 8.875% SENIOR NOTES DUE 2007 COLT Telecom Group plc (COLT) a leading pan-European provider of business communications solutions and services, announced today that it has given notice of the redemption of all of the outstanding GBP50 million 10.125% Senior Notes due 2007 and the DM150 million 8.875% Senior Notes due 2007. The redemptions will be at the principal amount of the Notes plus accrued interest and will be funded out of COLT's cash and liquid resources. The aggregate amount payable will be approximately GBP81.7 million. The redemptions will take place on 21 January 2005. COLT's Chief Financial Officer, Marina Wyatt said: "The early redemption of these Notes reflects the Board's confidence in the financial strength of COLT. Cash flow has improved in 2004 and we expect to be free cash flow positive on a sustainable basis during 2005. The early redemption of these Notes will save approximately GBP14.1 million of net interest over the next three years." The early redemption of these Notes follows the early redemption of GBP324 million of Notes on 19 October 2004. About COLT COLT Telecom Group plc is a leading pan-European provider of business communications services. COLT has over 19,000 network services and data centre solutions customers. The company owns an integrated 20,000 kilometre network that directly connects 32 major cities in 13 countries augmented with a further 42 points of presence across Europe and 11 Data Solution Centres. COLT supplies customers across the full spectrum of industry, service and government sectors with unrivalled end-to-end network security, reliability and service. COLT Telecom Group plc is listed on the London Stock Exchange (CTM.L) and NASDAQ (COLT). Information about COLT and its products and services can be found on the web at www.colt.net For further information contact: John Doherty Director Corporate Communications Email: jdoherty@colt-telecom.com Tel: +44 20 7390 3681 Gill Maclean Head of Corporate Communications Email: gill.maclean@colt-telecom.com Tel: +44 20 7863 5314 SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this Current Report on Form-6K to be signed on its behalf by undersigned, thereunto duly authorized. Date: 14 December, 2004 COLT Telecom Group plc By: ___Jane Forrest___ Jane Forrest Company Secretary