Nortel 250 安装指导
4
301789-A Rev.00
Nautica 250 Installation Guide
ISDN Ordering Information
Use of an ISDN router over a public ISDN network is usually on
a pay-as-you-go basis. You pay for the time that your ISDN link
is connected, although some suppliers also charge for every call
attempt.
a pay-as-you-go basis. You pay for the time that your ISDN link
is connected, although some suppliers also charge for every call
attempt.
Your ISDN router makes calls when there is one or more packets
to send to a remote network. To reduce the number of ISDN calls
this can generate, it is important that you read the “Additional
Information” section (
to send to a remote network. To reduce the number of ISDN calls
this can generate, it is important that you read the “Additional
Information” section (
). The options outlined here can
dramatically reduce the number of automatic ISDN calls made by
your router.
your router.
Your Nautica router comes with a software package called
Nautica Watch. Nautica Watch allows you to monitor the activity
on your router. The green LED will flash continuously when the
router is in use. If this happens when you are not actively using
your PC, then the PC or an application on the PC is connecting to
a remote network resource.
Nautica Watch. Nautica Watch allows you to monitor the activity
on your router. The green LED will flash continuously when the
router is in use. If this happens when you are not actively using
your PC, then the PC or an application on the PC is connecting to
a remote network resource.
If you are in any doubt at all about any of the following points or
the operation of your router, contact your local ISDN supplier for
advice.
the operation of your router, contact your local ISDN supplier for
advice.
The remainder of this section describes the ordering information
you need if you plan to use ISDN to connect your Nautica 250 to
other devices.
you need if you plan to use ISDN to connect your Nautica 250 to
other devices.
European ISDN Information
If you require ISDN in Europe, do the following:
•
If you require calling line identification (CLI) for additional
security, order the CLI option from your ISDN provider.
security, order the CLI option from your ISDN provider.
•
If possible, order both B channels with the same ISDN
number. This is known as auxiliary working and can speed
up connection times, particularly if you are using both ISDN
channels.
number. This is known as auxiliary working and can speed
up connection times, particularly if you are using both ISDN
channels.