
vi
Bandwidth-on-Demand Lines and Pools ................................................................1-13
How Bandwidth-on-Demand Pools and Circuits Work Together ......................1-14
Activating Secondary Lines .............................................................................1-14
Terminating Secondary Lines ..........................................................................1-14
Example Bandwidth-on-Demand Application ..................................................1-15
Using the Same Lines for Different Line Pools .............................................................1-16
Network Access Methods and Services .......................................................................1-16
Chapter 2
ISDN Overview
ISDN Standards ..............................................................................................................2-2
Basic Rate Interface .................................................................................................2-2
Primary Rate Interface .............................................................................................2-3
The D Channel .........................................................................................................2-3
Link Access Procedure for the D Channel .........................................................2-3
Call Control on the D Channel ...........................................................................2-5
ISDN Interfaces ..............................................................................................................2-5
Functional Groups ....................................................................................................2-5
Reference Points ......................................................................................................2-6
For More Information about ISDN ...................................................................................2-7
Chapter 3
Implementation Notes
Implementation Notes for ISDN ......................................................................................3-1
BRI Service on the AN, ANH, and ASN ...................................................................3-1
B Channel Support ............................................................................................3-1
D Channel Support ............................................................................................3-2
PRI Service on the BLN and BCN ...........................................................................3-2
B Channel Support ............................................................................................3-2
D Channel Support ............................................................................................3-3
S/T Interfaces ...........................................................................................................3-3
BRI Leased-Line Operation for Germany .................................................................3-4
BRI Subaddresses ...................................................................................................3-4
BRI Floating B Service for the AN and ANH ............................................................3-5
Selective PRI Service ..............................................................................................3-5
Call Screening ..........................................................................................................3-6
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