An airplane leading edge de-icing apparatus having a heat diffuser for heating the leading edges of an airplane is provided. It comprises: a VoIP gateway for communicating voice data of a video call stream over a DECT channel between at least one DECT terminal and a peer; and a WiFi access point for communicating video data of a video call stream over a WiFi channel between at least one WiFi video terminal and the peer. An internal ID corresponding to the found entry is outputted.