Plantronics NEC Compatible Cordless Headset Bundle CS540 EHS, for NEC Univerge IP Phones

The NEC compatible Plantronics CS540 Bundle is a single ear CS540 that has three different wearing styles, a noise-canceling microphone that reduces background noise interruptions, and is one of the lightest DECT wireless headsets on the market at only 21 grams. Never miss another call with the included remote answerer for NEC phones. You will be notified of calls with a ringtone in the headset allowing you to freely roam the office. Note: Make sure your phone has the latest NEC firmware. If your phone is not on this do not use this headset! Important Setup Information: Disconnect the phone from the network cable and phone prior to installing the EHS cable. Insert cable A per enclosed instructions, and install the plastic flap included with the APN-91 cable, per the diagram prior to reconnecting the network connection. Wait 20-30 seconds after all connections are made before pressing the headset button to make a call. Contact NEC or your phone administrator for details. Install the ringer to detect the device on the phone over the speaker, under the handset. This is then plugged into the socket mounted midway along the audio cable.