Avaya Configuring Dial Services Bedienungsanleitung Seite 72

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Configuring Dial Services
3-12 114062 Rev. A
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 also operating at 64 Kb/s for data
transmission.
D Channel Support
The router supports full 64 Kb/s D channel signaling as well as call setup and tear
down between the router and ISDN switch. The D channel implementation
complies with ITU-T (formerly CCITT) 1988 recommendations Q.921 and
Q.931, with 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, 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 implementation does not allow you to send data across the
D channel.
Selective PRI Service
Your ISDN provider may offer a service option using only a fixed number of PRI
B channels out of the full complement of B channels. This fixed number of
channels is offered at an economical rate.
The ISDN switch provider limits the number of channels by keeping the
unavailable channels busy. Consequently, the router can use only what is
available.
If you select this option, Site Manager enables you to select only those available
channels for communication. For example, if the provider offers channels B1
through B6, you select only channels 1 through 6 in the PRI Timeslots
configuration window (Chapter 7). You should not select all the B channels. Your
configuration should match your service.
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