ZyXEL Communications Prestige 652, Руководство пользователя, Страница: 107 / 521

Prestige 652 Series User’s Guide
WAN Setup 7-15
Table 7-3 Advanced WAN Backup
LABEL DESCRIPTION
Encapsulation
Select CISCO PPP from the drop-down list box if your backup WAN device uses
Cisco PPP encapsulation; otherwise select Standard PPP .
Compression Select this check box to enable stac compression.
Connection
Nailed-Up
Connection
Select Nailed-Up Connection when you want your connection up all the time. The
Prestige will try to bring up the connection automatically if it is disconnected.
Connect on Demand Select Connect on Demand when you don't want the connection up all the time
and specify an idle time-out in the Max Idle Timeout field.
Max Idle Timeout Specify an idle time-out in the Max Idle Timeout field when you select Connect
on Demand . The default setting is 0, which means the Internet session will not
timeout.
Budget The configuration in the Budget fields has priority over your Connection settings.
Allocate Budget Type the amount of time (in minutes) that the dial backup connection can be used
during the time configured in the Period field. Set an amount that is less than the
time period configured in the Period field. If you set the Allocated Budget to 0,
you will not be able to use the dial backup connection.
Period Type the time period (in hours) for how often the budget should be reset. For
example, to allow calls to this remote node for a maximum of 10 minutes every
hour, set the
Allocated Budget to 10 (minutes) and the Period to 1 (hour). If you
set the Period to 0, there is no budget control and the Prestige uses the
Connection settings.
Back Click Back to return to the previous screen.
OK Click OK to return to the previous screen, then click Apply to save the changes.
Cancel Click Cancel to begin configuring this screen afresh.
7.10 AT Command Strings
For regular telephone lines, the default “Dial” string tells the modem that the line uses tone dialing. “
ATDT
”
is the command for a switch that requires tone dialing. If your switch requires pulse dialing, change the string
to “
ATDP ”.
For ISDN lines, there are many more protocols and operational modes. Please consult the documentation of
your TA. You may need additional commands in both “Dial” and “Init” strings.