Integrated Service Digital Network (ISDN)
Simultaneous Integration of Voice and Internet Data
>> CONNECT AT HIGHER SPEEDS
A Digital Dialup Service
A regular telephone service (also called Plain Old Telephone Service: POTS) is
an analog type of service in its last mile between the Central Office and your
home. Because of that, the maximum speed that this service can attain is 56K,
offered by TerraNet’s 56K dialup service.
ISDN is a technology that allows having a fully digital connection at your home
or office. The last mile between the Central Office and your premises will be
digital.
Basic Rate Interface (BRI)
The BRI ISDN service is a pipe of two data channels (also called B channels).
Each channel consists of 64Kbps. Either one or both channels can be used for
Internet connection for a total of 128K dialup service. This dialup service is
digital, so speed is not affected by line quality or modem type; you will always
get 64K per B channel. Per minute charges for an ISDN line are the same as
those of a regular analog telephone line.
Voice Data Integration
ISDN permits simultaneous integration of voice and Internet data calls. In other
words, you can have an open Internet connection and at the same time still
receive regular phone calls. This is facilitated by the two B channels. If you are
only using one B channel for your Internet dialup connection, the other B
channel is free, allowing you to receive regular telephone calls at your home or
office. Obviously if you are using both B channels for your Internet connection,
you cannot use your phone until you disconnect or free one B channel. If
someone calls you while you are using both channels, he will receive a busy
tone.
What do I need?
In order to use the ISDN service you need the following:
You need to order a BRI ISDN service from Ogero. You
should be able to order this service from regular Ogero Points of Sale
(POS) within a short period.
You need a special ISDN terminal adapter (also called
ISDN modem) which is available from TerraNet
You need to call TerraNet sales department to
enable your account for ISDN access. TerraNet sales department can be
reached at 01-577 511.
For more information, call TerraNet Sales Department at 01-577 511
