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ETS 300111:1992-08

Integrated Services Digital Network (ISDN); telephony 3,1 kHz teleservice; service description

German title
Diensteintegrierendes digitales Fernmeldenetz (ISDN); Telephonie 3,1 kHz-Teledienst; Dienstbeschreibung
Publication date
1992-08
Original language
English
Pages
15
Publication date
1992-08
Original language
English
Pages
15

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