Broadband system and subscriber exchange

Broadband system (1) for transmitting and receiving broadband signals with a built-adaptation means (2), which a compensation signal (KS) from the received wideband signal (EBS), which with a reinforced sinusoidal signaling signal (verSS) one to the broadband system (1) can be coupled language system (3) is superimposed, adaptively generated and the generated compensating signal (KS) from the superimposed received wideband signal (eBS + verSS) is subtracted, so that an error compensated received wideband signal (FEBS) is formed.