Under CopyrightHett, ChristianChristianHettKuntze, NicolaiNicolaiKuntzeSchmidt, Andreas U.Andreas U.Schmidt2022-03-1030.8.20122006https://publica.fraunhofer.de/handle/publica/35420710.24406/publica-fhg-354207en004A secure archive for Voice-over-IP conversationspresentation