Full Duplex Handsfree - NEC Xen IPK Features & Specifications Manual

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Full Duplex Handsfree

AVAILABILITY

Features and Specifications Manual

The HFU-U( ) Unit is an add-on device to the DTU-Type Multiline Terminals

that provides full duplex speakerphone ability. An external microphone

is also provided with the HFU-U( ) Unit. The microphone has a push-to-

mute control button that turns the microphone off when it is pushed and

Terminal Type

All DTU-Type Multiline Terminals

Required Components

) Unit must be installed in each DTU-Type Multiline

To use the HFU-U( ):

and make an internal or external call.

When muting is desired press and hold down the Mute key on the

external microphone.

This is a full duplex unit, however, it cannot be assumed to work as

well as a conference-room-type speakerphone. The echo cancellation

is geared towards a smaller area (such as an office) with average

acoustic realities. Large environment or areas that have hard surfaces

that tend to bounce sound have an adverse affect on the

speakerphone quality. The HFU-U( ) Unit can be turned to a half-

duplex mode in these cases.