CEPT - T/SF 31-06 E
Relevance of Supplementary Services to Be Provided in an Integrated Services Digital Network (ISDN)
active, Most Current
| Organization: | CEPT |
| Publication Date: | 1 January 1987 |
| Status: | active |
| Page Count: | 5 |
Document History
T/SF 31-06 E
January 1, 1987
Relevance of Supplementary Services to Be Provided in an Integrated Services Digital Network (ISDN)
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