RAD Data comm Vmux-2100 Voice Trunking Gateway Chapter Introduction, Overview, Versions

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.

Note Vmux-2100 supports unbalanced E1 interface by using an external RJ-45-to-BNC interface adapter, CBL-RJ45/2BNC.

Overview 1-1