Nortel BCM50 2.0, Руководство по установке

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40 Chapter 5 ISDN overview
NN40020-309 NN40020-309
If you want to transmit both voice and data, and support D-channel packet service, order
package P. However, BCM50 does not support the flexible calling for voice and additional call
offering features that are included in package P.
Multi-Line Hunt may be ordered with your package. When a telephone number (the Network DN)
in the group of numbers assigned by your service providers is busy, the Multi-Line Hunt feature
connects the call to another telephone number in the group. BCM50 supports the feature only on
point-to-point, network connections (T loop). Check with your service provider for more
information about Multi-Line Hunt.
Any of the ISDN packages will allow you to use sub-addressing, but your ISDN TE must be
equipped to use sub-addressing for the feature to work.
Ordering ISDN BRI service outside Canada or the United States
Outside of Canada or the United States order Euro ISDN PRI and/or BRI service from your service
provider. Set the BCM50 equipment to the Euro ISDN protocol.
Supported ISDN protocols
The switch used by your service provider must be running the appropriate protocol software and
the correct version of that software to support ISDN PRI and BRI. Each protocol is different and
supports different services. Contact your service provider to make sure that your ISDN connection
has the protocol you require.
Capability Feature set Optional features
Point-of-
sale
Voice Data
M Alternate
voice/circuit-switched data
on both B-channels -- CLID -- X X
P Alternate
voice/circuit-switched data
on both B-channels
D-channel packet flexible calling for voice (not
supported by BCM50)
Basic D-Channel Packet additional call offering (not
supported by BCM50)
calling line identification X X X