User guide

Changing your Configuration 6-99
Maximum connection speed
Depending on the ISDN services available in your location, your ISP may offer
you choices about the maximum speed of your Internet connection. If so, the
router configuration needs to include your maximum connection speed.
5. If necessary, modify the Maximum connection speed.
ISDN Dial-on-Demand automatic disconnection
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 Idle timer, or select Off to keep
the ISDN call connected permanently.
6. If necessary, modify the Idle timer.
ISDN Leased line and ISDN Dial-on-Demand
If you are using an ISDN Leased Line for your Internet connection on one
ISDN channel
and
ISDN Dial-on-Demand on your other ISDN channel,
and
your Internet connection has a maximum speed of 128K or 112K, then you can
control when extra Dial-on-Demand ISDN calls are connected. You can choose
whether or not to use your Dial-on-Demand channel to increase your Internet
connection speed when the demand is high. If you choose to, then the router
will automatically make a Dial-on-Demand call when the demand rises above
a threshold level for a specified time. 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 network. You will also need to enter the ISDN
number for the second call to connect to your ISP.
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 bumping on the “Phone
and ISDN Information page” on page 96.
7. Choose whether or not to activate ISDN Dial-on-Demand calls when the
demand on your Internet connection is high. If necessary, modify the
threshold values.
8. Enter the ISP ISDN number.
Data over voice
The Data Over Voice 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. The ISP must also support and be configured for Data Over Voice
calls.
9. Choose whether or not to enable Voice Over Data calls.
Note: Depending on where you are located, and your ISDN service, it may be illegal to
use the Data Over Voice feature.