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| Press Release |
April
1, 1997 |
| DDI
POCKET Launches 32kbps Data Communications Service; PIAFS
Standard and Media Conversion Used to Perform at 32kbps
|
The DDI
POCKET TELEPHONE group is pleased to announce that PHS
data communications at 32kbps using the PIAFS standard
method and the media conversion method (α-DATA) will
be available from April 1, 1997.
Since the inception of the DDI POCKET TELEPHONE group,
the intention has been to realize 32kbps data transmission,
the main feature of PHS. In December 1996, the group began
to offer 14.4kbps communications using wireless modems
based on the media conversion (α-DATA).
The new service is a high-speed data communication platform
that supports ISDN at 32kbps. DDI POCKET TELEPHONE will
simultaneously deploy PIAFS and α-DATA standards.
This will enhance the convenience of customers and to
fast spread the use of PHS to perform high-speed data
communications.
Customers using 14.4kbps wireless modem communications
with handsets and card devices that support the α-DATA
standard are able to upgrade to ISDN supported 32kbps
data communications by changing the setup of the card.
The communications fees of current POCKET TELEPHONE services
will apply for the 32kbps data communications.
For PHS data communications, users will need a dedicated
handset. The Group will provide a standard, called α-DATA32,
that consolidates the PIAFS and media conversion as well
as the current media conversion functions, and will approach
the PHS handset manufacturers aggressively to adopt the
standard. |
| Data Communications
Provided by DDI POCKET TELEPHONE Group |
| Users can choose the standard
to suit the communications environment. By featuring both
the PIAFS standard method and the media conversion method,
users may select the method that accommodates the wireless
environment of the party communicated. |
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Between two
parties in PIAFS-supported environment (32kbps) |
| * |
PHS handset-Access
point of ISP that support PIAFS |
| * |
Between PHS
handsets |
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Users with
the current ISDN terminal adapter (32kbps) |
| * |
PHS handset-
Access point of ISP |
| |
(64kbps with
synchronized PPP) |
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Users with
analog modem (14.4kbps) |
| * |
PHS handset
- Access point of ISP |
| |
(modem speed
of 14.4kbps or less) |
The handsets that say α-DATA
support wireless modem communications at 14.4kbps, wireless
fax at 14.4kbps, and 32kbps wireless ISDN.
Those customers who already have handsets and card devices
supporting α-DATA are able to perform 32kbps wireless
ISDN communications.
Handsets and cards that support both α-DATA and PIAFS
will say α-DATA32. |
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Wireless
modem (14.4kbps)
Wireless fax (14.4kbps)
Wireless ISDN (32 kbps; PPP synchronized) |
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PIAFS
standard (32kbps)+ |
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