ZyXEL Communications 128MH - Manual (Page 173)

Prestige 128MH PSTN Router/Hub
14-3 Chapter 14 Troubleshooting
14.4 Problems Connecting to a Remote Node or ISP
Table 14-4. Troubleshooting a Connection to a Remote Node or ISP
Troubleshooting Corrective Action
Check Menu 24.1 to verify the PSTN/ISDN status. If it indicates
[down], then refer to the section on the PSTN/ISDN line problems.
In Menu 24.4.5, do a manual call to that Remote Node. You will see
some messages printed onto the screen. The messages will show
you whether the call has been connected or not. If the call is not
connected, verify the following parameters in Menu 11: Pri(mary)
Phone #, Sec(ondary) Phone #, and Transfer Rate.
If the call is connected, but the call still terminates, then there may be
some kind of negotiation problem. Verify the following parameters in
Menu 11: My Login, My Password, Route, IP LAN Addr. Also verify
your IP address in Menu 3.2.
Can’ t Connect to a Remote Node
or ISP
If you check the error log in Menu 24.3.1, this will usually give you
some logs regarding why the call was dropped. If there is nothing in
the log, the call may have been dropped by the remote device that
you dialed in to. Make sure that the configuration parameters
between these two devices are consistent.