Ascom: Disclosure of shareholdings

1. The group formed between Sterling Investment Group Ltd. und Swissfirst Bank AG as communicated on 2 September 2005 has been dissolved.

2. Swissfirst Bank AG, Bellariastrasse 23, 8002 Zurich, holds less than 5% of the voting shares.

Sterling Investment Group Ltd., Vanterpool Plaza, Wickhams Cay 1, Road Town, Tortola, British Virgin Islands owns the following stake:

Voting shares:

9.2%

Type and number of shares held:

3'321’131 nominal shares

Beneficial ownership:

Dr. Tito Tettamanti, Marylebone Lane, London W1U2NT controls 100% of Gritlot Ltd., Celtic House, Victoria Street, Douglas, Isle of Man, which controls 100% of the voting shares of Sterling Investment Group Ltd.

About Ascom

Ascom is an international solution provider with comprehensive technological know-how. In future the company aims to concentrate on the core areas of Wireless Solutions (high-value, customer-specific on-site communications solutions) and Security Solutions (applications for security, communication, automation and control systems for infrastructure operators, public security institutions and the army). The Special Products Division covers the activities of Network Integration (network solutions for the data/voice convergence market) in Italy and Payphones (specialised products for voice traffic). Discontinued operations primarily comprise Transport Revenue (revenue collection, parking and toll systems) and Network Integration Switzerland, Belgium and Germany. With a wealth of experience in implementing complex projects for discerning customers, Ascom has established itself in important key markets. Offerings range from analysis and consulting to system design and system integration, project management, engineering and implementation, right through to maintenance and support. The company has subsidiaries in 22 countries and a workforce of some 3,500 employees worldwide. Ascom registered shares (symbol ASCN) are listed on the SWX Swiss Exchange in Zurich.