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Overview 1-1
Chapter 1
Introduction
1.1 Overview
Vmux-2100 is a modular voice trunking gateway that enables up to 16 E1 or T1
circuits to be extended over a single E1, T1 or IP link. Vmux-2100 implements
G.723.1, G.729 A, G.711 compression and TDMoIP multiplexing algorithms to
send up to 480/384 voice channels over a single E1/T1 or IP link with transparent
CAS and CCS support. Vmux-2100 utilizes voice activity detection, silence
suppression, echo cancellation and other techniques to improve voice quality. The
gateway detects, generates and relays DTMF/MFR2/MFC signaling. In addition,
Vmux-2100 supports fax and data modem relay.
Vmux-2100 can be managed locally via an ASCII terminal or remotely via Telnet
or RADview (RAD’s SNMP-based network management application).
Versions
Vmux-2100 includes voice and main link modules.
Voice Module
Voice module includes two or four balanced E1/T1 ports.
Main Link Module
A main link module supports the following interface combinations:
• Two E1 ports (balanced) with a UTP Ethernet port
• Two T1 ports (balanced) with a UTP Ethernet port
• A single Ethernet port.
Vmux-2100 supports unbalanced E1 interface by using an external RJ-45-to-BNC
interface adapter, CBL-RJ45/2BNC.
Note