Справочное Руководство для Netopia 430 s

You must reset the system whenever you reconfigure the Netopia 
ISDN Router and want the new parameter values to take effect. 
Under cer tain circumstances, resetting the system may also clear 
up system or network malfunctions.

The ISDN loopback test is designed to confirm the existence of a 
working ISDN line and the proper configuration of cer tain Netopia 
ISDN Router parameters.

Using the first B-channel, the test calls the Netopia ISDN Router on 
the second B-channel, creating a call loop back to the unit.

To run the ISDN loopback test, select ISDN Switch Loopback Test 
in the Statistics, Utilities, Tests screen and press Return to the 
ISDN Switch Loopback Test screen.

                           ISDN Switch Loopback Test

                           Run Test Now

                           Status:   Untested

Select Run Test Now and press Return. The loopback test is 
executed immediately.

Note: Make sure neither B-channel is in use before you execute the 
loopback test.

The Status item repor ts one of three results:

Untested: The loopback test has not yet been run.

Loopback Test FAILED: The loopback test has failed. See 

 below, for troubleshooting suggestions.