Nippon Telegraph and Telephone to Offer ADSL Service
...an interesting look at how Japan is shifting to dsl and fiber, especially educational for the tech-impaired...
nikkeibp.asiabiztech.com
Excerpt:
December 21, 1998 (TOKYO) -- Nippon Telegraph and Telephone Corp. (NTT) decided to offer a high-speed data communications service using asymmetric digital subscriber line (ADSL) technology. NTT's service will start in some areas in the fall of 1999 and its nationwide deployment is scheduled for the fall of 2000.
ADSL had not been a viable choice for NTT, because ASDL technologies are based on copper lines, while NTT's corporate policy centers around optical-fiber cables for access lines. However, NTT has admitted that more than ten years is required to complete the overall implementation of optical-fiber cables, and the company has decided to adopt ADSL during the construction of the optical-fiber networks.
ADSL Service to Begin in the Fall of 1999
"NTT hopes that in the fall of 1999 we will be able to start telecom services based on ADSL. Although there is no change in the priority we assign to providing optical-fiber cables, NTT continues to utilize copper telephone lines as complementary means to optical fibers," said Junichirou Miyazu, president of NTT.
Using conventional methods, implementation of high-speed access lines at megabit speeds is impossible without laying new optical-fiber cables. However, with ADSL, it is realized by simply connecting ADSL modems with existing metallic telephone lines...... |