Chapter 8 WAN and 3G Screens
ZyWALL 2WG User’s Guide
198
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
.
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.
"
Consult the manual of your WAN device connected to your dial backup port for
specific AT commands.
Click the
Edit
button in the
Dial Backup
screen to display the
Advanced Setup
screen.
Figure 123
NETWORK > WAN > Dial Backup > Edit