Configure Input Level Gain and Output Level Attenuation

1. Click on Configure, Voice, and Channels from the navigation window:



You will see the Voice Channels window.



2. Locate the desired analog voice channel and click on the number in the Voice Profile column for that voice channel. The Voice Profile window opens:



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

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

• After the input level gain adjustment is completed, note and write down the setting used to bring the input level to -4 dBm. You will need it for setting the second E&M channel.

Move on to the voice Output Level Attenuation configuration for the E&M channel No. 2 (the channel that is connected to the channel just adjusted).

• Read the value of the receive level on the No.2 Network Analyzer display. The receive level should be approximately -12 dBm. If not, set the output attenuation until the receive level display is -12 dBm +2dBm, using Configure Input Level Gain and Output Level Attenuation. Add attenuation if/as necessary by changing the Output Level Attenuation integer.

After the output level adjustment is completed, note and write down this value. You will need it for setting the output level of the first E&M interface channel. Remember to click Save after all desired configurations are complete.

Note: Perceived voice quality is not significantly affected until the receive level drops below -16 dBm.



• You have now established the input gain setting on the No.1 channel and the output level attenuation setting on the No.2 channel.

Next, you may either repeat this procedure to adjust the input level gain setting on the No.2 channel, and the output level attenuation setting on the No.1 channel, or you may set the input level and output levels of the remote channel to the settings recorded in this procedure.

End Of Topic