Adjust the Input Level Gain and Output Level Attenuation

Locate the desired analog voice channel and click on the number in the Voice Profile column for that voice channel. You will see the Voice Profile window:

The Input Level Gain and Output Level Attenuation parameters are located towards the top of the window.

When all desired configuration changes are made, click Save (located towards the bottom of the window). A "Command Successful" message appears.

Move on to the voice Output Level Attenuation configuration for FXS channel No. 2.

Read the value of the receive level on the No.2 Voice Network Analyzer display. The receive level should be approximately -12 dBm. Use Adjust the Input Level Gain and Output Level Attenuation to set the output attenuation until the receive level display is -12 dBm +2 dBm, as in step 10 of the PBX Tie Trunk Application procedure. Record the setting, and save, using the save configuration command.

You have now established the input level gain setting on the No.1 channel, and the output level attenuation setting on the No.2 channel. Next, adjust the input level gain setting on the No.2 channel, and the output level attenuation setting on the No.1 channel. To do that, set the input level of the second channel to the value recorded in step 6, and set the output level of channel 1 to the value recorded in step 8. As an alternative, repeat this procedure in the opposite direction, using the second voice channel as the input end and the first voice channel as the output end.

Now that both channels are adjusted, test the voice quality. To do that, place both Voice Network Analyzer SETUP switches to BRDG, take one telephone off-hook and lift the other telephone off-hook when it rings. Talk to verify that there are no echoes. If there are echoes, increase the output level attenuation setting on the distant channel.

Remove any and all test equipment, such as Voice Network Analyzers and telephone sets, and restore the system to normal service.

End Of Topic