It utilized the C-450 standard,[1] originally developed by Siemens AG, and was the third and last update of a series of analog mobile phone systems used primarily within Germany, superseding the B-Netz and the A-Netz before it.

The C-Netz was officially introduced in 1985 (with unofficial trials in 1984) to replace the existing B-Netz/B2-Netz system used in Germany at the time.

It remained popular throughout the decade as a preferred system for mobile car phones, particularly rural taxi services, where it enjoyed an advantage in reception.

However, it was inferior in all other ways to the newer GSM networks, and by the late 1990s Deutsche Telekom stopped accepting new customers.

The C-Netz radio spectrum in Germany (two 6 MHz wide frequency bands) was reallocated for use with Flarion's Flash-OFDM mobile networking standard which launched in 2005.

[1] It is a 1G analog cellular standard that utilized non-audible in-band signaling, audio scrambling via band-inversion and cell network call queuing when congested.

The technology and function are comparable to a mobile network in the LTE standard, primarily for telemetry data transmission and remote control of energy-producing systems.

From 1985 to 2000, Deutsche Telekom operated the analogue mobile phone network C-Netz in Germany between 451 and 466 MHz.

In addition, the authorities and organizations with security tasks (BOS) as well as the Bundeswehr demanded exclusive use of the frequencies.