Configuring ISDN Line Parameters 77minutes. After 5 minutes of inactivity, you are locked out of the Web Wizardconfiguration program. The password must be entered to gain access.If you forget your password, you can reset the ISDN LAN Modem to the factorydefault which allows you to enter a new password. Note that when the ISDN LANModem is restored to the factory default settings, you will lose your configurationwhich includes all service provider profiles and ISDN parameters. For instructions,refer to Chapter 9, “Resetting the ISDN LAN Modem.”Configuring ISDN LineParametersDuring initial set up, you had the opportunity to enter up to two telephonenumbers for your ISDN line. You can make changes to these telephone numbersor add a third telephone number for your ISDN line. You may want to add a thirdtelephone number if you are using Multiple Subscriber Numbering (MSN).In addition, you can configure Terminal Endpoint Identifiers (TEI) if your telephonecompany requires this. By default, TEI is set to automatic meaning your telephonecompany automatically assigns a TEI to your ISDN line.What is MSN? MSN is a supplementary feature offered by some telephone companies whichprovides additional telephone numbers for your ISDN line. With these additionaltelephone numbers, you can dedicate a telephone number to each deviceattached to the ISDN LAN modem. In the ISDN parameters window, enter thetelephone numbers assigned to your ISDN line. To specify how to route calls usingthese telephone numbers, refer to “Changing Call Routing”.Your ISDN line must support MSN to allow multiple telephone numbers for asingle ISDN line. Check with your telephone company.What is subaddressing? Subaddressing is another means of assigning specific numbers to devices attachedto the ISDN LAN modem. You can arbitrarily assign extensions to the ISDNtelephone number to route calls to different devices. Note that the telephonenumber and subaddress extension that you configure in the ISDN LAN modemmust precisely match the dial string of the incoming call in order for the call to berouted properly. For example, if you enter 020 555 1212 in the Telephone number1 field and then enter *2 in the subaddress field, incoming calls must include all ofthese digits (020 555 1212 *2). Otherwise, the call is ignored.If you are using MSN, you will have a different telephone number in eachtelephone number field. If you are using subaddressing, enter the same telephonenumber in each telephone number field. The unique number in the subaddressfield is used to route the call to the correct device.To configure ISDN line parameters, do the following.1 From the ISDN LAN modem main page, click the wall outlet graphic.The ISDN Parameters window appears.