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Ackermann, Ralf (2003)
Gateways and Components for Supplementary IP Telephony Services in Heterogeneous Environments.
Technische Universität
Ph.D. Thesis, Primary publication
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Ackermann, Ralf (2003)
Gateways and Components for Supplementary IP Telephony Services in Heterogeneous Environments.
Technische Universität
Ph.D. Thesis, Primary publication