Connecting and Managing Analog Devices 127To determine the extension assigned to any port on a 3C10117C ATC:1 Click Telephone Configuration > ATA.2 Look for the combination of MAC address and port number that youwant. The extension associated with the port is in the first column(Extension).After you have added the Analog Terminal Card, you can configure theparameters for each of the four ports. See “Modifying an AnalogTerminal Port” on page 127.Adding an AnalogTerminal Adapter(ATA)To add an Analog Terminal Adapter (ATA) to the system:1 Click Telephone Configuration > ATA.2 Click Add.3 Complete the fields, as necessary. See the online Help for moreinformation.4 Click Apply to add the new ATA to the system.5 Repeat as necessary to add more ATAs.6 When you are finished adding ATAs, click OK.Modifying an AnalogTerminal PortYou can modify the configuration of an Analog Terminal Card port or asingle-port ATA at any time.To modify an analog device configuration:1 Click Telephone Configuration > ATA.2 Click the extension of the device that you want to modify.3 Modify the fields, as necessary. See the online Help for more information.4 Click Apply to effect the changes.5 Click OK.Removing an AnalogTerminal AdapterYou can remove either an Analog Terminal Adapter (ATA) or one of theports on an Analog Terminal Card (ATC) from the system at any time. Anydevice connected to the ATA is also removed from the system.