Superseded
Standard
Historical
DIN ETS 300257:1994-05
Private Telecommunication Network (PTN); inter-exchange signalling protocol; diversion supplementary services; English version ETS 300257:1993
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Technical characteristics
| Publisher | Deutsche Institut für Normung e.V. (DIN) |
| Publication Date | 05/01/1994 |
| Page Count | 8 |
| EAN | --- |
| ISBN | --- |
| Weight (in grams) | --- |
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