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DIN ETS 300056/A1:1997-10
Integrated Services Digital Network (ISDN) - Call Waiting (CW) supplementary service - Service description; English version ETS 300056:1991/A1:1996
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Summary
ISDN - Dienstmerkmal Anklopfen - Dienstbeschreibung; Englische Fassung ETS 300056:1991/A1:1996
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| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 10/01/1997 |
| Page Count | 7 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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01/09/1992
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01/09/1992
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01/09/1992
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