It means that games are played on AI IZIS Boards, which are connected to the IZIS server. There is a script developed by Joerg which is enabling the transmission of any IZIS game to the Online Go Server and/or Pandanet IGS.
Here in Vienna, we assembled seven AI IZIS Boards, replacing at least 4 human scribes (we do not have such resources), to broadcast all games from Pro Qualification Round Robin tournament (11 rounds, 6 games per round), and one game from the European Pro Championship (7 rounds, 3 games per round). The last two games from the European Pro Championship are transmitted by one top go player.