The DIVA Terminal Adapters Program for Macintosh

 

 

 

 

Parameter

Description

 

ISDN Cost

This option only applies if your ISDN connection protocol is set to ‘Multilink PPP’.

 

Reduction

Note: You must activate ‘BACP/BOD’ before setting the intervals.

 

Timers

 

Set these intervals to ensure your second B-channel is used most economically.

 

 

 

 

‘Initial Billing Interval’: Specifies the minimum time a B-channel can remain

 

 

open (in seconds). For example, if the value is set to 600, a channel, once open,

 

 

will remain open for at least 10 minutes (600 seconds).

 

 

If you are charged a fixed amount for the first x seconds of a call (e.g. 300

 

 

seconds), a good rule of thumb is to set the timer to this value, e.g. 300. For an

 

 

example of setting the interval under more advanced conditions, see “Billing

 

 

Interval Example” on page 137.

 

 

Setting the timer to 0 disables it. The Billing Interval is also, effectively disabled.

 

 

Default: 60 seconds.

 

 

‘Billing Interval’: Specifies the time interval your Service Provider uses to bill

 

 

usage of your ISDN line (in seconds). For example if your Provider charges $Y per

 

 

60 seconds, enter 60.

 

 

Setting the timer to 0 disables it. The Initial Billing Interval remains in effect.

 

 

Default: 60 seconds.

 

 

 

 

1st B-channel

‘Delay before opening’: Specifies the amount of time (in seconds) the

 

 

throughput on your D-channel must exceed the Opening Threshold before the

 

 

1st B-channel is added to the AO/DI connection.

 

 

For example, if you specify 5 seconds, and the Opening Threshold is 70%, once

 

 

the throughput on the D-channel reaches 70%, there will be a delay of 5 seconds

 

 

before the 1st B-channel is added to the AO/DI connection. If the throughput

 

 

drops below 70% during the 5 seconds, the 1st B-channel will not be added to

 

 

the connection.

 

 

‘Opening Threshold’: Specifies the threshold (percentage) that the throughput

 

 

on your D-channel must exceed before the 1st B-channel is added to the AO/DI

 

 

connection.

 

 

‘Closing Threshold’: Specifies the threshold (percentage) that the throughput

 

 

on your B-channel must be below before the 1st B-channel is dropped from the

 

 

AO/DI connection.

 

 

This option is only available with AO/DI support.

 

 

 

DIVA T/A ISDN Modem User’s Guide Page 66

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