Avaya Configuring Dial Services Bedienungsanleitung Seite 124

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Configuring Dial Services
5-10
117353-B Rev. 00
You have an S interface only if an NT2 device is present. An NT2 is a switch at
your site that connects your TE1 and TE2 equipment to the network.
Figure 5-5
shows the router in a sample ISDN network.
Figure 5-5. Router in an ISDN Network
The following sections explain ISDN operation on your router.
BRI Service on the AN, ANH, ASN, and ARN
The AN, ANH, ASN, and ARN support the BRI standard for ISDN using an
integrated ISDN/BRI Link module.
The ISDN/BRI module allows you to connect directly to the ISDN network
instead of connecting via a terminal adapter. With BRI, you reduce equipment
costs and simplify connections to an ISDN switch.
The BRI implementation supports all three dial services. In addition, the
implementation supports an ISDN leased-line application (for Germany only).
Subsequent chapters in this manual describe how to configure each service to
connect to an ISDN network.
Note:
The ARN can only use three B channels. If you select 2B + D service
for one BRI interface, you must use 1B + D service for the second interface.
router
Digital line
S/T
U
TE1 NT1
ISDN
DS0012A
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