Objective
This article explains how to work with Line (FXO) ports in Cisco UC320W. UC320W offers business-class calling and messaging with full key system and small private branch exchange (PBX) features. The system is flexible enough to support a wide choice of Cisco SPA Series IP phones, and includes integrated wireless networking. The Line (FXO) ports in UC320W are used for off-hook and on-hook indications at the FXS`s end of the telephone circuit. FXO interfaces are also available for computers and networking equipment to allow interactions directly with POTS (Plain Old Telephone System) systems. The UC320W was designed with the small business owner in mind, providing all the features needed. This article explains how to troubleshoot in UC320W if while using this tool you experience audio quality issues, such as echo or clipping, with an FXO trunk.
Applicable Device
• UC320W
Current port states, corresponding to the lights on the front panel of the
hardware.
• POWER/SYS: Green - Normal operation. Slow flashing - Booting up. Fast flashing - Upgrading
firmware. Off - No power.
• LAN 1: LAN 1 port status: Green - Connected to a device on this port. Flashing - Sending or
receiving data. Off - Not connected.
• LAN 2: LAN 2 port status: Green - Connected to a device on this port. Flashing - Sending or
receiving data. Off - Not connected.
• LAN 3: LAN 3 port status: Green - Connected to a device on this port. Flashing - Sending or
receiving data. Off - Not connected.
• LAN 4: LAN 4 port status: Green - Connected to a device on this port. Flashing - Sending or
receiving data. Off - Not connected.
• WAN: WAN port status: Green - Connected to WAN. Flashing - Sending or receiving data. Off -
Not connected.
• PHONE (FXS): Phone (FXS) port status: Green - Service is available on the port, and the port is
not in use. Slow Flashing - Service is available and the attached phone is off hook (in use). Off -
The port is disabled.
• LINE (FXO) 1: Line (FXO) port 1 status: Green - PSTN line loop detected on this port. Slow
Flashing - FXO port is in use. Off - Not connected.
• LINE (FXO) 2: Line (FXO) port 2 status: Green - PSTN line loop detected on this port. Slow
Flashing - FXO port is in use. Off - Not connected.
• LINE (FXO) 3: Line (FXO) port 3 status: Green - PSTN line loop detected on this port. Slow
Flashing - FXO port is in use. Off - Not connected.
• LINE (FXO) 4: Line (FXO) port 4 status: Green - PSTN line loop detected on this port. Slow
Flashing - FXO port is in use. Off - Not connected.
• WLAN: Wireless network status: Green - Wireless radio is on. Flashing - Sending or receiving
data. Off - Disabled.
• VM: Voicemail system status: Green - Voicemail is enabled. Fast Flashing - System is full. Slow
flashing - Retrieving or recording voicemail. Off - Disabled.
• USB 1: USB port 1 status: Green - A USB key is installed. Off - Not connected. Flashing -
Connected but not yet available for access.
• USB 2: USB port 2 status: Green - A USB key is installed. Off - Not connected.
• WPS: Green - WiFi Protected Setup succeeded. Slow flashing - Setup is in progress. Fast
flashing - Setup error. Off - Not in use. To configure a WiFi connection by using WPS, make
sure the wireless device is located near the Cisco UC320W, then press and hold this button
until the WPS light flashes.