Settings For Fxo Ports; Troubleshooting Tools For Fxo Trunks; Fxo Gain Settings - Cisco UC320W Administration Manual

Ports and Trunks
Line (FXO) Ports
Cisco Unified Communications UC320W Administration Guide

Settings for FXO Ports

• Enabled: Check the box to enable the port. Uncheck the box to disable the
port.
Note: Refer to the on-screen illustration for the location of the FXO ports,
where you can connect to your analog phone service. You can position your
mouse pointer over the pointer icon to view the picture at a larger size.
• Label: Type a descriptive label (optional). For example, type the published
phone number, without punctuation or spaces. This label will appear on the
phone screen as a default label for inbound calls, unless another CLID is
provided by the Central Office. It also will identify any Shared FXO Line
buttons that you configure for this trunk. If the label is left blank, a port
description, such as fxo1, will appear.

Troubleshooting Tools for FXO Trunks

These tools are available after you enable at least one FXO port and apply your
configuration.
• Adjust FXO Gain: Use this tool if you experience volume issues on an FXO
trunk. For more information, see the "FXO Gain Settings" section below.
• FXO Impedance Matching: Use this tool if you experience audio quality
issues, such as echo or clipping, with an FXO trunk. For more information,
see the "FXO Impedance Matching" section below.

FXO Gain Settings

Click the Adjust FXO Gain button to adjust the gain (volume) for each FXO port, as
needed. It is usually necessary to make only minor adjustments.
Caution: Improper settings can cause voice quality issues that may include noise,
signal misdetection, and distortion.
Note: Refer to the on-screen illustration for the location of the FXO ports, where
you can connect your FXO (analog) phone lines. You can position your mouse
pointer over the pointer icon to view the picture at a larger size.
• Transmit (dB): Drag the slider left to reduce the volume of the transmitted
audio on the specified port. Drag the slider right to increase the volume.
• Receive (dB): Drag the slider left to reduce the volume of the received
audio on the specified port. Drag the slider right to increase the volume.
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