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in stockReleased: 1997-10
DIN ETS 300056/A1
Integrated Services Digital Network (ISDN) - Call Waiting (CW) supplementary service - Service description; English version ETS 300056:1991/A1:1996
ISDN - Dienstmerkmal Anklopfen - Dienstbeschreibung; Englische Fassung ETS 300056:1991/A1:1996
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English PDF
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34.86 EUR
English Hardcopy
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34.86 EUR
| Status: | Standard |
| Released: | 1997-10 |
| Standard number: | DIN ETS 300056/A1 |
| Language: | English |
| Name: | Integrated Services Digital Network (ISDN) - Call Waiting (CW) supplementary service - Service description; English version ETS 300056:1991/A1:1996 |
| Pages: | 7 |
DESCRIPTION