ZyWALL 5/35/70 Series User’s Guide

Table 43 Dial Backup (continued)

LABEL

DESCRIPTION

 

 

Apply

Click Apply to save your changes back to the ZyWALL.

 

 

Reset

Click Reset to begin configuring this screen afresh.

 

 

7.16 Advanced Modem Setup

7.16.1 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.

7.16.2 DTR Signal

The majority of WAN devices default to hanging up the current call when the DTR (Data Terminal Ready) signal is dropped by the DTE. When the Drop DTR When Hang Up check box is selected, the ZyWALL uses this hardware signal to force the WAN device to hang up, in addition to issuing the drop command ATH.

7.16.3 Response Strings

The response strings tell the ZyWALL the tags, or labels, immediately preceding the various call parameters sent from the WAN device. The response strings have not been standardized; please consult the documentation of your WAN device to find the correct tags.

7.17 Configuring Advanced Modem Setup

Click the Edit button in the Dial Backup screen to display the Advanced Setup screen.

Note: Consult the manual of your WAN device connected to your dial backup port for specific AT commands.

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Chapter 7 WAN Screens