User`s guide

Section 360−381−S02

7.1.6. Loopback of ISDN Card

Use the following steps to perform the ISDN card loopback.

Note: Loopback is only available for ISDN cards set to LUNT mode.

Step Action System Response

1. Select Loopback Test " Loopback of ISDN

Card

Opens the ISDN Loopback/Release dialog box

(see Figure 25).

2. Select the the channel you want the loopback test

run on.

3. Select the loopback type.

4. Select OK Initiates the loopback or release.

Figure 25. ISDN Card Loopback