Eicon Networks DIVA T/A ISDN manual Bacp Tab, Isdn Cost Reduction Timers

The DIVA Terminal Adapters Program for Windows 95/98/NT

BACP Tab

This tab is visible only if the data protocol is set to ‘MultiLink PPP with BACP’ or ‘MultiLink PPP with AODI’.

BACP activates the DIVA T/A’s automatic traffic monitor for Multilink PPP connections. When activated, this DIVA T/A function monitors the send-and-receive traffic volume. BACP opens or closes the second B-channel as the traffic volume warrants. Activate this function to ensure that two B-channels are never active when one is sufficient.

With AO/DI support, when additional bandwidth is required, BACP automatically adds B-channels of 64 Kbps each (for a total of 128 Kbps speed when both B-channels are in use) to the connection. When the additional bandwidth is no longer required, one or both B-channels are dropped, leaving the D-channel connection in place.

Note: If you select Bandwidth Allocation Control Protocol, but do not set the timers, you could incur unnecessary expense as your second B-channel may open and close frequently, costing you the set first-interval amount each time the second B-channel connects.

ISDN Cost Reduction Timers

Set the ISDN Cost Reduction Timers if you intend to establish Multilink PPP connections and if you select the Bandwidth Allocation Control Protocol (described above). The ISDN Cost Reduction Timers combine with the Bandwidth Allocation Control Protocol to ensure you the most cost-efficient use of ISDN online time. With the timers set, the DIVA T/A will not connect and disconnect your second B-channel, except when it is most economical to do so.

If your ISDN provider charges one rate for the first interval of time online, and a different rate for any subsequent time online, select the appropriate Initial Billing Interval (in seconds) to match the amount of time your ISDN provider allocates as the first time interval. Select the appropriate Billing Interval to match the amount of time your ISDN provider designates as the minimum chargeable unit for all subsequent billing.

DIVA T/A ISDN Modem User’s Guide ◆ Page 46