Innovative Access Solutions
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Dear Colleague, Business-Class Voice Services over the Public Internet
Historically, enterprises have tended to lease expensive but dependable T1 or E1 lines for interconnecting voice and data between their multiple sites. Recently, however, many have begun to migrate to VoIP over Virtual Private Networks (VPNs). While this solution does eliminate T1/E1 lines, it replaces them with local connections to an ISP's point of presence (POP) and a service provider or carrier network, which still entails on-going operating expenses (Opex). In addition, the incorporation of voice traffic over VPNs obliges the huge capital expense of replacing existing TDM equipment, including even desktop telephones, with relatively novel VoIP equivalents, not to mention the retraining of entire staffs. Revolutionary Changes Inconvenience Customers Today's telephony technology, both those portions that VoIP is intended to replace and those with which VoIP must interface, is extremely complex. Its hundreds of features and thousands of variations will require time before they can be implemented in pure VoIP networks, including emergency services (such as 911). Businesses will continue to be wary about revolutionary changes that might compromise their telephone infrastructure and inconvenience their customers, and cost a fortune to boot. So is there any way for end users to take advantage of the public Internet to support business-class voice services at PSTN quality levels? To a certain extent, they already do, albeit without fanfare. Most international voice calls that are not made over leased lines are already transmitted via non-TDM segments, at least at some point before they reach their intended destination. Virtually all alternative international carriers, for example, rely on VoIP to ensure their competitive rates. Moreover, the probability is quite high that international calls placed through local long haul operators also invariably find their way onto voice wholesalers' VoIP networks. These wholesalers typically oversubscribe their capacity in order to minimize overhead. The result is a "best effort" service that randomly drops packets to accommodate peak traffic. While a few milliseconds of missing voice here or there might not faze the home consumer, when multiplied by the thousands of calls made from and to large enterprises, it could have a major affect on any company's business relationship with its customers. RAD's Experience: Savings on International Voice Calls over the Public Internet
Uses 60% Less Bandwidth Than VoIP Like typical VoIP systems, the Vmux-2100 supports G.723.1, G.729A and G.711 standards. TDMoIP with compressed voice, however, supports a more efficient use of bandwidth through even higher compression rates. With lower overhead than VoIP systems, the Vmux can free 60% more bandwidth for additional voice or data, which is crucial on costly or low bandwidth links. This solution is particularly attractive because it provides a return on investment virtually immediately. Simple, inexpensive and transparent to all signaling and protocols, RAD's Vmux with TDMoIP technology offers enterprises an ideal solution for interconnecting their voice traffic over the public Internet as well as VPNs or other Gigabit Ethernet/IP/MPLS connections.
RAD Joins Hands with Other Industry Leaders to
Demonstrate Viability of MPLS Infrastructure for Deployment of
Ethernet, TDM and ATM-based Services At the recent MPLS World Congress, RAD demonstrated interoperability of its ETX-510 VPLS access device, which is designed to support Hierarchical Virtual Private LAN services (H-VPLS) for deployment of Ethernet services over MPLS networks. The company also showed functionality for immediate implementation of TDM-over-MPLS as well as ATM pseudowire tunneling over an MPLS backbone. In addition, RAD exhibited the effectiveness of transporting E1 over IP over MPLS, from the customer premises. Read the full story Read
the MPLS World Congress White Paper on Large-Scale Multi-Vendor
Layer 2 VPNs with MPLS International Call Carriers Lower Costs by Using RAD's Vmux Voice Trunking Gateway
RAD Products Chosen for Major Offshore Oil Industry Voice and Data Project in Gulf of Mexico
RAD Introduces Competitively Priced, Managed Access Units for E1/T1 or Fractional E1/T1 Services
Miniature Bridge Provides Fast Ethernet Connectivity
Cellular Backhaul Webinar A recording of our recent Cellular Backhaul
Webinar featuring Gaby Junowicz, RAD's Senior Business Development
Manager, is now available.
RAD's 2005 company catalog in Russian is now available in PDF format on our international corporate site, and Russian site. The company's 2005 catalog in French is also available on our international corporate site and French site. DataFlow The contents of the Winter 2005 edition of RAD's DataFlow newsletter are now posted online. You can also download the entire newsletter in PDF format. Industry
Insights In this issue of Industry
Insights: Indian Telecoms Update; Ethernet in the Access; Wireless
Cost-Cutting Sincerely, |
Who among us hasn't yet tried out Skype's
Internet telephony? Skype is the sensation "that is changing the
telecommunications world by offering consumers free,
acceptable-quality calling worldwide." But while all of us enjoy
talking with the kids over Skype's "peer-to-peer software" from our
laptops while we're on the road or to an old college buddy from our
home PC, most enterprises require a more robust solution that offers
greater security, as well as the incontestably high level of service
that businesses have traditionally demanded and continue to get from
the PSTN. 
RAD, in fact, has already connected its offices
on five continents to its international headquarters over the public
Internet using the 
Turkey's Televersal Telecommunications, Inc.,
which provides international call carriers with access to an efficient
global network for transporting voice over the Internet with little
or no additional capital expenditure, has selected the Vmux-2100
voice trunking gateway from RAD Data Communications to provide voice
traffic from its headquarters in Istanbul to regional points of
presence (POPs) over the Turk Telekom national SDH network. 
PetroCom, a pioneer in wireless voice and data
communication for the offshore oil and gas industry, chose RAD's
Megaplex-2100 modular multiplexer and Vmux-2100 voice trunking gateway
to provide voice and data connectivity to four new multi-billion
dollar oil platforms being erected by BP in the Gulf of Mexico.
The FCD-E1LC and FCD-T1LC are the latest additions to RAD's
popular FCD family of multiservice network termination units. These
access units provide integration of voice, n x 56/64 kbps data and
LAN traffic over E1/T1 or fractional E1/T1 services, offering great
price-performance for business applications. The FCD-E1LC and FCD-T1LC
also support advanced management capabilities, including SNMP for
central management for easy control and monitoring. 
The TinyBridge-100 is a miniature, high performance,
remote, self-learning Ethernet Bridge that provides 10/100BaseT
Ethernet connectivity for the first time in a palm-sized package.
Its high throughput makes it an ideal solution for extending 10/100BaseT
Ethernet LANs over synchronous WAN networks common in many office
and campus networks. It can also be added to provide bridging functionality
to existing synchronous WAN devices such as routers, multiplexers,
and modems. 
2005 Catalogs 