(Nikkei BP Group)
(No.1 High-Tech News Site in Japanese)
| NTT to Offer Inexpensive ATM Leased Line Service
December 1, 1998 (TOKYO) -- Nippon Telegraph and Telephone Corp. (NTT)
said it will start an inexpensive leased line service called ATM Share
Link Service and based on asynchronous transfer mode (ATM) technology,
as of Dec. 25.
|NTT will launch the service in the three major metropolitan areas of
Tokyo, Osaka and Nagoya. The service will then be offered in other areas,
where demand is expected to be strong.
A main feature of ATM Share Link lies in setting two types of transmission
speed: the "guaranteed minimum rate" and the "non-guaranteed rate."
For example, when a guaranteed minimum rate is set at 200kbps and a
non-guaranteed rate at 1.8Mbps, a communications service can perform
at a maximum of 2Mbps if the networks are not busy.
ATM Share Link changes its transmission speed depending on the level
of traffic over transit networks, as also is the case with frame relay
services for many corporate users.
NTT has another service of the secured rate type called the ATM Mega-Link
Service. By setting both the speeds of ATM Mega-Link and ATM Share Link
at 2Mbps, the former costs 236,000 yen (US$1,925) and the latter 139,000
yen (US$1,130). The ATM Share Link Service (with the guaranteed minimum
rate at 200kbps) is considered highly viable in terms of costs.
The new ATM leased line service is particularly suitable for cases in
which an application that generate a sizable amount of data on an irregular
basis is used over networks.
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