User guide
Table Of Contents
- Title Page
- About
- Contents
- Introduction
- Installing the AR100 Series Internet Router
- Getting Connected
- About Web Access to the AR100
- Configuring for the First Time
- Configuring for a Leased Line
- Changing Your Configuration
- Using Telephony Services
- Accessing Router Utilities
- Troubleshooting
- Safety and Statutory Information
7-12 Changing an inter-office connection
Making calls semi-permanent
The AR 100 supports semi-permanent ISDN calls. This means that an ISDN call
can be configured to remain connected indefinitely, and to be automatically
reconnected if it is disconnected for any reason. If you subscribe to the
OnRamp Express service in Australia, outgoing calls on this line are charged at
a lower rate than regular dial-on-demand ISDN calls.
If you subscribe to OnRamp Express:
■
Select Keep call up semi-permanently.
■
Set the Auto-disconnect time described below to Off.
■
Tell the network administrator at the remote office that you have lower call
charges, so that they can configure their router only to accept incoming
data calls from your office, and not to send outgoing data calls to your
office.
Caution for Australia only: Only outgoing calls on the OnRamp Express
service are charged at the lower rate. Incoming calls are charged at the higher
casual rate, even if the calls are kept up semi-permanently, potentially
leading to high ISDN call charges.
Note for Australia only: If you have an AR140 with voice ports, and want to use
telephones or other devices connected to these, do not make calls to both the
Internet and your remote office semi-permanent. If you do, there will be no
channels available for phone calls.
Activate a second ISDN call on demand
The AR100 can make a second ISDN call to your remote office to increase the
speed of your connection when the demand for it rises above a threshold. It
will automatically disconnect such a Dial-on-Demand call when the demand
falls below a lower threshold value for a specified time. You can use the default
threshold and time values or change these values to tune your connection. You
will also need to enter the ISDN number for the second call to connect to your
remote office.
Note: To determine whether data or voice Dial-on-Demand calls will be
dropped for higher priority calls for an AR140 with phone ports, see Call bump-
ing on the Phone and ISDN Information page (Figure 7-4).
■
Choose whether or not to activate a second ISDN Dial-on-Demand call
when the demand on your inter-office connection is high.
■
If necessary, modify the threshold values.
■
Enter the remote office ISDN number.
Data compression
Stac LZS compression reduces the amount of data passing over your inter-
office connection. It improves performance and may reduce call charges.
■
If necessary, modify the Compression setting.