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Integrated Service
Digital Network Primary Rate Interface (ISDN-PRI) |
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Overview
Integrated Service Digital Network Primary Rate Interface (ISDN PRI) is
a standard, all digital access technology that allows for simultaneous,
integrated voice and data capabilities over standard existing telephone
lines. ISDN PRI offers 100% digital clarity and an array of value-added
features, such as calling number identification and call-by-call
selection, that enhance productivity.
ISDN PRI is configured with 23 bi-directional B (Bearer) channels and
one D (Data) channel. Unique to ISDN PRI is its ability to designate the
D channel to handle all of the signaling and call control requirements
and leave the remaining 23 B channels free for any mix of voice, virtual
private line and circuit-switched data.
With ISDN PRI, you can:
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Use your existing infrastructure to enable all
digital, high-speed voice and data applications that increase
productivity;
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Dynamically allocate channels to adapt to changes
in traffic patterns and increase trunking efficiency by up to 30%,
reducing total trunks required;
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Leverage advanced features to support call center
applications, or to extend the life and value of an existing PBX
system, while reducing call set-up and connection time by up to 90%;
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Cost-effectively connect multiple locations with
guaranteed, two-way bandwidth that can carry voice and data, all via
the PSTN;
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Transfer large volumes of data and enhanced voice
over instantaneous connections with superior transmission quality; and
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Implement a cost-effective, robust disaster
recovery/back-up solution to protect mission-critical traffic on a
wide area network or traditional E1
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Benefits
Increased Efficiency
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Each PRI can handle multiple voice, fax and modem
lines simultaneously, reducing the overall number of trunks needed by
as much as 30%.
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Dynamic Channel Allocation, a standard ISDN PRI
feature, accommodates drastically changing traffic patterns by
automatically allocating channels to support voice or data as
required.
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ISDN PRI uses out-of-band signaling for faster
call set-up, faster connections, and 64K clear channel capability.
Ultimate Flexibility
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ISDN PRI uses existing standard phone lines and
fiber optic circuits, making it simple to add or change
configurations. A single line can have multiple telephone numbers and
ISDN PRI comes with enhanced voice features that help improve
productivity.
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ISDN PRI's ability to dynamically allocate
channels adapts to changes in business needs unlike the static
designations in traditional T1 channels.
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ISDN PRI's range of standard features and
capabilities are available for one low price, letting you take
advantage of all the functionality you need and nothing you don't.
High Quality, Low Cost
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ISDN PRI offers 100% digital quality…And it does
it for less using your existing infrastructure.
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ISDN PRI is four to eight times faster than a
standard 28.8 Kbps modem and speeds are available from 64 Kbps all the
way up to nx64 Kbps = 2 Mbps.
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With its fast call-set up times and fast,
error-free transmissions, ISDN PRI helps business improve
productivity, improve service, and ultimately improve their customer
satisfaction.
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