Integrated Services Digital Network (ISDN)

In the early 1970s, France decided to base the modernization and extension of its telephone network on digital techniques. The result is a network that today is one of the most digitized in the world.

Thanks to the digitization of its network, France Telecom has been able to offer new services for many years. These are concentrated around an internationally standardized infrastructure: ISDN (Integrated Services Digital Network). In France, this offering goes by the commercial name Numéris. Numeris simply uses the telephone infrastructure's digitization, and is often presented as an "on-ramp to the information superhighway" (e.g., 64 or 128 kbit/s digital access to the Internet).