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NEC Australia Pty Ltd
Xen Master & Xen Axis
5 - 164
Installing Electronic Telephone Units
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5.5
VMS(2/4/8)-U13 ETU
5.5.1
Description
The VMS(2/4/8)-U13 ETU is a 2-, 4- or 8-port Digital Voice
Mail system.
This ETU is a PC platform installed in the Xen system and
contains hard disk space for voice recording storage and
application software. A digital signal processor/voice
processing section handles the following functions:
✆
DTMF detection
✆
DTMF generation
✆
General tone detection
✆
FAX CNG tone detection
✆
PCM compression for audio recording/playback
✆
Automatic gain control (AGC)
✆
A serial port capable of direct connect speeds up to
19.2 Kbps or for connecting external modem.