Before You Begin

Before you configure ISDN interfaces, you need to perform the following tasks:

• Install Services Router hardware. For more information, see the Getting Started Guide for your router.
• Establish basic connectivity. For more information, see the Getting Started Guide for your router.
• Order an ISDN line from your telecommunications service provider. Contact your service provider for more information.
• If you do not already have a basic understanding of physical and logical interfaces and Juniper Networks interface conventions, read Interfaces Overview.

Although it is not a requirement, you might also want to plan how you are going to use the ISDN interfaces on your network before you begin configuring them. (To display a list of installed ISDN BRI interfaces, select Configuration>Quick Configuration>Interfaces.)