RAD’s Vmux-2100 Lowers Voice Trunking Costs for TDM and IP Core Networks
February 04, 2004 /The Wi-Fi Technology Forum/- RAD Data Communications will be exhibiting its Vmux-2100™ compressed voice gateway at the 3GSM World Congress, which will be held in February at the Palais des Congrès in Cannes.
The Vmux, which was unveiled only one year ago, has quickly achieved wide market recognition and already has been deployed by cellular operators on six continents. The product dramatically reduces voice trunking expenditures for MSC-to-MSC interconnectivity by enabling up to 16 full E1 or T1 lines to be extended over a single E1, T1 or Ethernet uplink. The Vmux, which is now being used to compress more than 3,000 separate links worldwide, typically yields full payback within six months, and even as quickly as in 40 days.
“In order to ease their 3G investments, cellular operators have to reduce current expenditures on 2G networks as much as possible by making their existing backhaul and core network more efficient,” explains Gaby Junowicz, Senior Business Development Manager for Cellular and Wireless Networks at RAD Data Communications. “By deploying the Vmux-2100, they will dramatically cut their expenses by reducing the number of E1 links that are leased to connect MSC switches.”
TDMoIP Yields More Efficient Use of Bandwidth and Higher Compression Rates
The Vmux-2100 supports G.723.1, G.729A and G.711 standards and, by employing RAD’s innovative packet-based TDM over IP (TDMoIP®) technology, it is able to support a more efficient use of bandwidth through even higher compression rates. The Vmux can compress a voice channel at a rate as low as 4 kbps, which, for purposes of comparison, is approximately half the VoIP compression rate for equivalent voice quality.
Also contributing to the superior efficiency of RAD’s Vmux-2100 is its compact size. At only 1U (1.75 inches) high, the Vmux occupies considerably less space than the average VoIP system, a significant factor in minimizing co-location costs. “For these reasons, the Vmux-2100 is an attractive solution for cellular operators backhauling traffic over another carrier’s network, substantially minimizing operating expenditures,” notes Junowicz.
Assures Smooth Migration from TDM to IP
The Vmux reduces costs in the existing TDM-based network while, at the same time, it assures a smooth migration path from TDM to IP technologies whenever IP will be introduced at the core. 3GPP (3rd Generation Partnering Program) releases 4 and 5 already call for the use of IP for cellular backbones, and the Vmux already implements a solution tailored for an IP future. “The Vmux-2100 is a versatile product that is able to support voice, fax and data over IP,” Junowicz continues. “Moreover, because it can be configured either with a TDM or Fast Ethernet uplink, it can provide a smooth migration path from TDM-based applications to the world of IP.” Since the Vmux supports simultaneous transmission over both TDM and Ethernet media, the product will continue to be used once migration takes place.
Fully Configured in Minutes
RAD’s Vmux-2100, which can be fully configured in a matter of minutes, also excels in terms of provisioning time and ease. The product also features full SNMP management, and the RADview Service Center package monitors and manages the operation of the equipment. The Service Center's intuitive GUI interface, "point-and-click" functionality and easy-to-follow wizards increase the efficiency and accuracy of the service provisioning process.
The Vmux-2100 supports a wide variety of signaling protocols, including MFC/R2, ISDN, SS7, and any CCS signaling, as well as fax and data modem relay. In addition, it supports full backup over a second E1 or T1 link and full redundancy between WAN and LAN.
In releasing the Vmux, RAD is expanding its wide portfolio of solutions for cellular backhauling. RAD’s cellular solutions improve the cost performance of existing GSM networks and lead the way for the cost-effective incremental deployment of next generation cellular services while utilizing any available infrastructure, whether SDH, ATM, DSL, IP or wireless.
About RAD
Established in 1981, privately owned RAD Data Communications has achieved international recognition as a major manufacturer of high quality access equipment for data communications and telecommunications applications. These solutions serve the data and voice access requirements of service providers, incumbent and new carriers, and enterprise networks, by reducing infrastructure investment costs while boosting competitiveness and profitability. The company's installed base exceeds 8,000,000 units and includes more than 150 carriers and operators around the world. These customers are supported by 19 RAD offices and more than 200 distributors in 105 countries.
RAD is a member of the RAD Group of companies, a world leader in networking and internetworking product solutions.
RAD Data Communications site:
http://www.rad.com
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