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Released: 01.11.1994
CSN ETS 300 139
Integrated Services Digital Network (ISDN). Call Hold (HOLD) supplementary serivce. Service description
Format
Availability
Price and currency
English Hardcopy
In stock
35.29 USD
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| Number of Standard: | CSN ETS 300 139 |
| Category: | 873521 |
| Pages: | 2 |
| Released: | 01.11.1994 |
| Catalog number: | 16850 |
DESCRIPTION
CSN ETS 300 139
Original English text of CSN EN Standard.
The price of the Standard included all amendments and correcturs.