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Product Details
Sprint ISDN converts your office's standard phone lines
from a single, analog circuit into multiple, high-speed
circuits. You can choose from two kinds of Sprint ISDN:
- BRI is ideal for small businesses or for individuals
and small groups in larger organizations.
- PRI is designed for businesses of any size with
high communication volumes.
ISDN converts single circuit phone lines into multiple
circuits. These circuits include bearer (B) channels
for sending information and a data (D) signal channel
for controlling call connections. Each B channel provides
up to 64 kbps (thousands of bits per second) speed vs.
analog's top speed of 56 kbps or less. The D channel
handles call set-up and control. This takes the load
off the B channels and gives ISDN its high speed and
versatility to handle multiple communications tasks
simultaneously on the same line.
ISDN BRI
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Sprint BRI provides two B channels
with up to 128 kbps of bandwidth to perform multiple
tasks involving your telephone, computer, fax
and other devices.
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ISDN PRI
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Sprint PRI provides 23 B channels
that deliver 1.54 Mbps of bandwidth, the equivalent
of a T1 line, but much more versatile.
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Flexible Bandwidth
B channels can be used independently for separate tasks,
or can be bonded together to provide higher than 64
kbps bandwidth. This ability to dynamically allocate
bandwidth makes Sprint ISDN ideal for applications like
videoconferencing and large image file transfers.
Worldwide High-Quality Communications
Sprint ISDN is a switched service and is based on international
standards. This gives you reliable communications to
any point in the world served by the public telephone
network. Sprint ISDN offers crystal-clear voice connections
and virtually error-free data transfers, because its
digital transmissions are not affected by the line interference
that can degrade analog communications.
Clear Channel Capability
Although, in most cases, ISDN can use the full 64 kbps
of bandwidth available on a B channel, some elements
of the local and interexchange networks may not be upgraded
to clear-channel capability. In these cases, ISDN bearer
channels are limited to 56 kbps. Clear channel capability
is growing, however, and this situation is becoming
less common. This affects only a very small percentage
of the Sprint local telephone network.
Wide Selection of Equipment
Because ISDN is based on accepted standards, you are
not limited in the equipment you can use with your Sprint
ISDN service, so long as it isn't proprietary and it
conforms to the accepted standards. Sprint offers a
complete line of ISDN equipment for your selection,
and with a terminal adapter device, you can continue
using your existing analog equipment, such as your fax
machines and standard phones. Of course, to benefit
from the full speed and versatility of your Sprint ISDN
service, you will want to use ISDN-capable equipment.
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