ZyXEL p-662h-61 Guia Do Utilizador

Prestige 662HW Series User’s Guide

Chapter 9 WAN Setup

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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. 

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 Prestige uses this hardware signal to force the WAN device to hang up, in 
addition to issuing the drop command "ATH".

The response strings tell the Prestige 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.

To configure settings for your backup WAN modem, click WAN, WAN Backup and then the 
Advanced Setup button. The Advanced Setup screen displays, click the Edit button to open 
the Advanced Modem Setup screen as shown next. 

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.

Table 28   Advanced WAN Backup (continued)

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