NEC VisuaLink 128/384, Руководство пользователя

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Page D-2 NDA-24230 Issue 2.0
Appendix D VisuaLink 128/384 User Guide
2. The network provider provisions the correct ISDN BRI and completes the
following list of questions.
ISDN BRI Service Specification needed:
As defined by Bellcore; the ISDN BRI simplified ordering code is EZ-ISDN1.
• The ISDN BRI protocol National ISDN-1
• The ISDN BRI service must be terrified and available from the customer’s
local central office.
• The D channel should not permit X.25 packet data
• The ISDN BRI service must allow videoconferencing calls to be dialed on
either B channel or on both simultaneously
• Both B channels must carry circuit-switched Videoconferencing data
• The ISDN BRI Line requires one or two different SPID number.
• The ISDN BRI service must be configured as a Terminal Type A
• The ISDN BRI service must be automatic Terminal Endpoint Identifiers
(TEIs)
A. User requires an (NT1) to use the ISDN BRI service ( ) Yes ( ) No
B. If Yes, the ISDN BRI network provider can ( ) or cannot ( ) supply it.
C. If the ISDN BRI network provider cannot supply the needed NT1, and then
who is recommended supply.
Name;
Company:
Phone #:
D. Did the ISDN BRI service pass a loop qualification test at the user site listed
Yes ( )
No ( )
Note: The ISDN BRI must pass a loop test at the user site before installation
begins.
E. Check one of the following.
( )
The users ISDN BRI line doesn't require a Service Profile Identifier
(SPID) number for installation.
( ) The user’s ISDN BRI line requires one SPID number and one director
number (also called) Sub-Address for installation
SPID # Sub Address #
( ) The user’s ISDN BRI line requires two SPID number and two
directory numbers for installation
SPID 1 # Sub Address 1 #
SPID 2 # Sub Address 2#