Chapter 8 WAN Screens
8.17.2 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.
8.17.3 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.
8.18 Configuring Advanced Modem Setup
Click the Edit button in the Dial Backup screen to display the Advanced Setup screen.
"Consult the manual of your WAN device connected to your dial backup port for specific AT commands.
Figure 120 NETWORK > WAN > Dial Backup > Edit
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