ADTRAN 1200221L1, User Manual

Page: 11 / 34

61200221L1-1 VCOM Module User Manual 1-1
Chapter 1
Introduction
VOICE COMPRESSION MODULE OVERVIEW
The Voice Compression Module (VCOM Module) combines with other
ATLAS components to implement a voice over frame relay (VoFR) capabil-
ity in the ATLAS 800
PLUS
series of Integrated Access Systems. The
VCOM Module occupies a single slot in the ATLAS chassis. You can order
the VCOM Module with support for 8, 16, 24, or 32 simultaneously com-
pressed calls.
FUNCTIONAL DESCRIPTION
The VCOM Module installs into any available slot in the ATLAS 800
PLUS
chassis. You can view the module status from the ATLAS front panel (see
Chapter 4 of the ATLAS 800
PLUS
User Manual). You can also use the terminal
menu to provide additional status information, configure the module, and
download application software. Access the terminal menu either via a
VT-100 terminal connected to the ATLAS Base Unit's control port or via a
Telnet session established through the Base Unit's Ethernet port.
VOICE COMPRESSION RESOURCES
• The VCOM Module ordering options provide 8, 16, 24, or 32 voice com-
pression resources.
• The VCOM Module provides automatic selection of CCITT Standard or
ADTRAN-proprietary voice compression algorithms based on endpoint
configuration.
• The VCOM Module supports FAX at 14400 bps.
• The VCOM Module includes dual-tone, multi-frequency (DTMF) gener-
ation and detection.
• The VCOM Module enables and disables individual voice compression
resources.