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Vmux-210 TDMoIP Voice Compression GatewayVmux-210 from RAD

Vmux-210 is a customer-located device that complements RAD’s larger modular Vmux-2100 system. It fulfills the need for remote  voice trunking gateway for both IP and leased line TDM networks, providing LAN and compressed voice services for a corporate  application which requires a large number of analog lines. The Vmux-210 voice interface includes 12, 15, 24, or 30 FXS analog ports  that connect to POTS or faxes. Vmux-210 compresses the voice traffic and transports it over a serial link, E1/T1 link, or a  10/100BaseT IP link. The device employs G.723.1, G.729 Annex A and G.711 compression algorithms together with RAD’s unique  TDMoIP™ multiplexing, including transparent CAS. CAS is transparently transmitted end-to-end. A second 10/100BaseT port on the  Vmux-210 is provided for connecting a user Ethernet LAN to the unit. Together with Vmux-210’s integral Ethernet switch, this allows  integrating the user LAN traffic with the compressed voice, over a single uplink (IP or serial) to the network. An integrated router  supports IP routing, Firewall, NAT, DHCP Server/Relay and static routing. The IP routing can be performed between the LAN networkLAN user, and serial ports. To transfer voice as well as 10/100 Mbps Ethernet data over a serial uplink with a small bandwidth (such  as for satellite applications), the ingress data rate on both Ethernet ports can be limited to one of several values between 128 kbps  and 8 Mbps. Vmux-210 provides +12/16 KHz pulse metering and polarity reversal for call center applications. Vmux-210 is a compact,  1U high, 19" wide unit that can be mounted in standard 19" racks.
Vmux-210 application #1
Vmux-210 from RAD has improved bandwidth utilization

Voice Activity Detection (VAD) and silence suppression allow Vmux units to dynamically allocate bandwidth for voice traffic. This  results in efficient bandwidth usage, leaving more bandwidth for data transport. By preventing packets from being sent when no voice  activity is detected, the VAD mechanism conserves bandwidth. The improved bandwidth utilization enables Vmux-210 to support a higher number of channels than is possible by using conventional voice compression methods alone. By performing TDMoIP™ multiplexing and grouping the timeslots of G.723.1 compressed voice into bundles with a common IP address, the actual link 
bandwidth can be reduced to as low as 4 kbps per channel (a reduction of 16:1).

Vmux-210 priority mechanism

Vmux-210 includes an internal mechanism for identifying and providing priority for packets containing voice, over those containing  other LAN traffic. This ensures that voice packets are not delayed and a high voice service quality is maintained. 

Vmux-210 QoS Support

The IP uplink complies with all relevant Ethernet LAN standards, such as IEEE 802.3 and 802.3u. It provides reliable, high Quality of Service (QoS), by optional VLAN tagging and priority labeling according to IEEE 802.1p&Q. The user can configure the Type of  Service (ToS) of the outgoing IP packets. This allows an en-route Layer 3 router or switch, which supports ToS (or Diffserv), to give
higher priority to Vmux-210‘s IP traffic for delay-sensitive applications. Assigned, IANA-registered UDP socket number for TDMoIP™  simplifies flow classification through switches and routers. 

Vmux-210 VLAN table

Vmux-210 includes a VLAN table, which contains up to 64 entries. Each entry defines the egress and tagging policies for packets with a specific VLAN ID, for each port. Packets with a particular VLAN ID can be blocked.

Vmux-210 Management

All Vmux-210 operating parameters are configured using a simple, menu-based software. For upgrades or backup, software upload 
and download can be performed via TFTP. Vmux-210 can be configured and monitored via a local ASCII terminal, Telnet, or Web client. A DB-9 control port is provided for local terminal connection for monitoring and control. For system security, Vmux-210 offers four different user levels: Monitor, Technician, Operator and Administrator. Up to 20 different usernames with passwords can be defined.

Vmux-210 Application #2

Vmux-210 data sheet

Vmux-210 Operations manual (pdf 6600 kb)

Immediate price quote - Call 727-398-5252 or e-mail cs@bestdatasource.com

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Other RAD sections of interest:
RAD Accessories, RAD ATM products, RAD Baseband modems and last mile access, RAD Cables & Misc, RAD Digital Service Access Devices ( FCD ), RAD Fiber Optic modems and Converters, RAD IP and Ethernet Access, RAD Kilomux Data, Voice, Fax and LAN integrating Multiplexers, RAD LRS Modem rackRAD MegaplexRAD Networks Management, RAD Optimux Fiber MultiplexersRAD Sharing Devices, RAD Short Range ModemsRAD T1/E1 Digital Cross Connects ( DACS ), RAD T1/E1 Digital Cross Connect (DACS) for single E1 / T1 applications, RAD TDMoIP, RAD Voice Interface Converters, RAD Voice Trunking Gateway

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Last modified: January 17, 2015
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