ISDN Interfaces

Integrated Services Digital Network (ISDN) is a system of digital phone connections that allows voice, digital network services, and video data to be transmitted simultaneously using end-to- end digital connectivity.

The Nokia IP security platform offers support for an ISDN Basic Rate Interface (BRI) physical interface. The ISDN BRI comprises one 16 Kbps D-channel for signalling and control, and two 64 Kbps B-channels for information transfer. Nokia’s physical interface is certified to conform to the European Telecommunications Standards Institute (ETSI) ISDN standard.

The physical interface is the manageable representation of the physical connection to ISDN. One physical interface is visible in Network Voyager for every ISDN BRI card in the Nokia appliance chassis. The physical interface enables management of the parameters specific to each ISDN connection. The physical interface permits enabling or disabling of the ISDN connection and is the entity under which logical interfaces are created.

The logical interface is the logical communication end point. It contains all information used to set up and maintain the ISDN call. The logical interface includes:

„Data link encapsulation and addressing

„Call connection information such as call direction, data rate, and the number to call

„Authentication information such as names, passwords, and authentication method

„Bandwidth allocation for Multilink PPP

After configuring the physical interface, then creating and configuring the logical interfaces, the Nokia appliance is ready to make and accept ISDN calls. Detailed information on how to create and configure ISDN interfaces begins in “To configure an ISDN physical interface.”

The ISDN interface supports the following features.

„Port—ISDN Basic Rate S/T interface with RJ45 connector

„ISDN signaling—ETSI EURO-ISDN (ETS 300 102)

„B-channelprotocols—IETF PPP (RFC 1661 and 1662); IETF Multilink PPP (RFC 1990)

„Security—PAP (RFC 1334), CHAP (RFC 1994), and ISDN Caller ID

„Dial-on-demandrouting—you can configure the ISDN interface so that only certain types of traffic establish and maintain an ISDN connection.

Circuits are automatically removed if they are not required.

„Dynamic bandwidth allocation—you can configure the ISDN interface to add or remove additional bandwidth as the traffic requires it.

„Multiple destination support—you can configure the ISDN interface to connect to two different destinations simultaneously.

„Dial-insupport—you can configure the ISDN interface to accept incoming calls from remote sites.

To configure an ISDN physical interface

1.Click Interfaces under Configuration > Interface Configuration in the tree view.

2.Click the physical interface link to configure in the Physical column.

Nokia Network Voyager for IPSO 4.0 Reference Guide

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Nokia IPSO 4.0 manual Isdn Interfaces, To configure an Isdn physical interface