ftth nga nögig noegig lower austria open access fttb broadband igor brusic wholesale only glasfaser 3lom public infrastructure net neutrality public service hrvatski eu fondovi hrvatska regulation croatia daseinsvorsorge télécommunications public broadband cmg ländervergleich Österreich open networks utility austria modell nö dg connect fiber infrastructure brusic fiber microducts pon ethernet geschäftsmodelle optical access networks business model
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