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- To help users select their terminal equipment, suppliers should
clearly identify inter-operability and compatibility information such as
rate adaption schemes supported (e.g., V.110, V.120,...), video encoding
schemes supported (e.g., H.261, MPEG, JPEG,...), and switch compatibility
(e.g., NI-1, NI- 2, Custom).
- To help users identify what they are purchasing, plainly identify
Model and Firmware Version/Revision on the box. Also, clearly label the box
with information such as "Power Supply Not Included" or "NT-1 Not Included",
and list the contents (e.g., an ISDN phone with connecting cables).
- To help users order ISDN from the telephone company, provide contact
information for the major ISDN service providers and identify an ISDN Ordering Code (IOC)
compatible with your product. IOCs are designed to simplify ordering and
provisioning of ISDN service from the telephone company. If no Generic IOC
corresponds with your needs, consider registering a Non-Generic IOC with
Telcordia. Additional information on IOCs
and registering a Non-Generic IOC is available.
Include a fact sheet with ISDN CPE to provide users with a "quick"
reference useful for provisioning and maintaining ISDN service, listing
terminal data users may need to order their ISDN line (manufacturer,
model, call appearance identifiers, feature identifiers, etc.), and
parameters provided to users by the telephone company that may need to be
programmed into the terminal, e.g., SPID(s), DN(s), etc.
- To help users determine whether they have all the necessary equipment
for their particular application, identify additional software or equipment
needed for the intended application not included with the equipment. For
example, an NT-1, power supply, communication software, etc.
A plug and play (end-to-end) diagram depicts the overall configuration of
an application. For example, a diagram illustrating remote LAN access may
include a terminal (e.g., PC), NT-1, ISDN LAN Bridge, and connecting
cables on one end, and an ISDN LAN Bridge, NT-1, LAN, and connecting
cables on the other end, along with sufficient detail to allow users to
determine all equipment needed to support an application and how to
connect the equipment.
- To help users install and maintain their equipment, suppliers
should describe the following information.
The powering alternatives supported (e.g., PS1, PS2, and external),
associated wiring configurations, and procedures to restart a terminal
following commercial power interruption.
End-to-end wiring describes wiring from the NT-1 to the jack (network
termination) and from the NT-1 to the terminal(s), identifying types of
connecting cables needed (including terminating resistors), distance
limitations (e.g., distance between the NT-I and the terminal(s), timing
considerations (e.g., applicability of fixed versus adaptive), passive bus
arrangements, and extensions (e.g., indicate the need to separate ISDN
lines from analog lines). Cover basic (simple) wiring information and,
for more complicated situations, supplier literature could refer users to
the NIUF document on powering and wiring (contact Sara Caswell -
301-975-2937 - at the North American ISDN Users' Forum to obtain a copy of
this document) or recommend users seek the services of a qualified
technician. Trouble shooting guidelines enable users to determine
whether they have properly configured their terminal equipment. Provide
users access to technical support through a helpline or other suitable
vehicle. To facilitate maintenance, identify model and firmware
version on the equipment. User and Technical Manuals along with a
glossary of ISDN terms provides the necessary information and terms needed
for equipment operation.
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