Referenced Items are not available for this document.
To meet Japan's diverse data communication needs, Nippon Telegraph & Telephone Public Corporation (NTT) has been researching and developing the digital switching network, DDX. The circuit-switching network was put into commercial service in Tokyo, Osaka, Nagoya, and Yokohoma on 25 December 1979.
Published in:
Communications Magazine, IEEE
(Volume:19
,
Issue:
2
)
Date of Publication: March 1981
- Page(s):
- 34 - 37
- ISSN :
- 0163-6804
- Digital Object Identifier :
- 10.1109/MCOM.1981.1090471
- Product Type:
- Journals & Magazines
- Date of Current Version :
- 06 January 2003
- Issue Date :
- March 1981
- Sponsored by :
- IEEE Communications Society
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