The main aim of the Delan training cable is to be able to carry out the training of the operator, or any other type of listening in to the telephone call, as it allows two headsets to be connected at the same time.

The TC-MY cable also provides the possibility, by pressing the appropriate button on it, to close the audio transmission channel of one of the two headsets, which could be useful for the trainer to listen to the call of the operator being trained without influencing them with their voice.