Avaya Configuring Dial Services Bedienungsanleitung Seite 127

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Implementation Notes for All Dial Services
117353-B Rev. 00
5-13
PRI Service on the ASN, BLN, and BCN
The ASN, BLN, and BCN provide PRI service using the following modules:
120-ohm Single Port MCE1-II Net Module (ASN only)
Single or Dual Port MCT1 Link Module (BLN and BCN only)
120-ohm Single or Dual Port MCE1-II Link Module (BLN and BCN only)
QMCT1 Link Module (BLN and BCN only)
PRI allows you to connect directly to the ISDN network instead of connecting via
a terminal adapter. PRI is a cost-effective solution when the number of BRI
channels required for an application exceeds the cost of a single PRI line. The cost
savings depend on each country’s tariffs.
All three dial services can use PRI connections. Subsequent chapters in this
manual describe how to configure each service to connect to an ISDN network.
B Channel Support
In keeping with the PRI standard, each port on the MCT1 Link Module provides
23 B channels operating at 64 Kb/s for data transmission. Each port on the MCE1
Link Module provides 30 B channels operating at 64 Kb/s for data transmission.
D Channel Support
The router supports full 64 Kb/s D channel signaling and call setup and teardown
between the router and ISDN switch. The D channel implementation complies
with the ITU-T 1988 recommendations Q.921 and Q.931, and provides signaling
support for the following switches:
Net5 for Austria, Belgium, Denmark, France, Germany, Italy, Netherlands,
Norway, Spain, Sweden, United Kingdom, Switzerland, Finland, Greece,
Iceland, Ireland, Luxembourg, and Portugal
AT&T 5ESS and 4ESS Custom and DMS-100 Custom for the United States
DMS-100 Custom for Canada
NTT and KDD for Japan
TS014 for Australia
Bay Networks routers do not support data transmission across the D channel.
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