NEC 128/384 User Manual
NDA-24230 Issue 2.0
Page 1-1
VisuaLink 128/384 User Guide
Chapter 1
Chapter 1 Introducing Your VisuaLink
1.1 Applying for ISDN
BRI
This device cannot be used unless a connection to ISDN BRI Communication
Line is provided. Verify that a ISDN line exists before the CODEC is installed.
Line is provided. Verify that a ISDN line exists before the CODEC is installed.
What to watch out for when filling out an ISDN BRI application:
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 tariffed and available from the customer’s
local central office.
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.
either B-Channel or on both simultaneously.
•
Both B-Channel must carry circuit switched videoconferencing data.
•
The ISDN BRI line required one or two different SPID numbers.
•
The ISDN BRI service must be automatic Terminal Endpoint Identifiers
(TEIs).
(TEIs).
Voice and data features:
•
Flexible calling
•
Call forwarding variable
•
Additional call offering
•
Call number identification
•
Redirecting number delivery