This document describes the features and capabilities of the NEC Dterm Voice Security Recorder (Dterm VSR) and the associated Desktop software solution.
The Dterm VSR consists of a USB device that taps across the digital extension pair of a Dterm Digital extension port and software that enables the user to manage their stored calls.
The advantages of Digital Recording over analog ‘handset tap’ devices are clear:
The diagram below shows the connection configuration of the Dterm VSR device and the local desktop PC.
The Dterm VSR hardware simply connects in-line at the telephone user’s desktop. No power is required and because the in-line connection is simply a metallic wiring of the ‘in’ and ‘out’ connections, Xtension Recorder does not affect the telephone operation in any way with or without connection of the host PC via USB.
This section describes the NEC Dterm VSR USB device hardware specification. The device is constructed in a UL94 V-0 black polymer and measures 84mm x 72mm x 25mm (or 3” x 2 3/4 ” x 1”).
The VSR device has 3 connectors:
The device does not interfere with the communication between the NEC phone system and the Dterm telephone. The device does not require USB power or a connection to the PC to maintain the functionality of the telephone in its normal manner.
The device meets the appropriate FCC and UL requirements required for this type of communications device.
The device is ‘soft up-loadable’, its firmware is uploaded from the PC driver and Desktop Software application at runtime. This allows for easy upgrade and enhancement of the product in the field as required.