The Czech Telecom ist the national telecommunications company of the Czech Republic. You might find the following manual of interest as well, although they are in Czech.

credits:
corporate identity and the manual was designed in 1998, 1999 by Studio Dumbar (The Netherlands)

“At first this kind of graphic transformation registers as ‘the shock of the new’. It must therefore be accompanied by a carefully conceived communications program designed to educate employees and the public-at-large, so they not only accept the new identity but internalize it; becoming, in effect,
identified with it – literally, as satisfied employees and customers, and figuratively, as advocates loyal to the brand.”
Gert Dumbar, founder and creative director, Studio Dumbar

Source:
> Czech Telecom - Manual [PDF]