User guide

Changing Your Configuration 7-9
Keeping calls up semi-permanently
The AR100 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.
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Set the Auto-disconnect time described below to Off.
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.
Auto-disconnect time
If you are using ISDN Dial-on-Demand, your Internet connection will by
default automatically be disconnected if it is unused for more than 60 seconds,
to save call charges. It will automatically be reconnected when there is new
data to send. You can change the value of the Auto-disconnect timer, or select
Off to keep the ISDN call connected permanently (for instance, if you subscribe
to OnRamp Express in Australia).
■
If necessary, modify the Auto-disconnect timer.
Data over voice
The Data Over Voice (DOV) feature sends data calls over the ISDN network as
though they are voice calls. For those ISDN service providers that have lower
charges for voice calls than for data calls, this feature can give reduced ISDN call
charges. If you are to send DOV calls, the ISP must also be configured for DOV.
■
Enable or disable Data Over Voice calls.
Caution: Depending on which country you are located in and the ISDN
service you use, using the Data Over Voice feature may not be permitted.
Internet connection limits
You can limit the use of your Internet connection. Depending on how your ISP
charges for your Internet connection, you can choose to limit the connection
time, or the amount of data sent or received, or the total data sent and received
over your Internet connection. When the limits are exceeded, the router will