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To: Bernard Levy who wrote (10503)	2/20/2001 9:45:14 PM
From: ftth	Read Replies (1) \| Respond to of 12823

RadioTel Announce RadioRing IP. [Thanks Bernard, here's another recent claim of 256QAM. Also found an old claim by Wavespan (now Proxim?) of 256 QAM. I don't know how you keep up with all these companies coming, going, and transforming...and I suspect it isn't over yet] TEL AVIV, Israel--(BUSINESS WIRE)--Jan. 25, 2001 RadioTel Ltd. announced today the launching of RadioRing (TM) IP intelligent broadband wireless transmission delivering up to 2x155 Mbps capacity, addressing the need for mixed transmission of packet and voice service, while extending product solution for IP. RadioRing IP allows dynamic allocation of the spectrum between IP (packet) and Circuit Switched (voice) as per user configurations. RadioRing IP is an innovative new generation network solution for wireless/fiber transmission allowing network's provisioning of modern services, such as data mixed together with voice on the same bandwidth. RadioRingTM IP features RadioTel's proprietary packet based technology, which pushes the spectrum usage and efficiency, so that up to 95% of data transmission's bandwidth is gained! Dynamic allocation of bandwidth over SDH/SONET technology, enables the operator to control the data (IP) and voice (circuit switched) ratio. RadioTel's networks are based on a ring topology allowing the use of fiber or wireless (2-38 GHz) as an interchangeable transport medium. The radio, which uses programable modulation from OPSK up to 256 QAM, is unique in its efficient use of radio spectrum, delivering 155 Mbps capacity over only 28 MHz of bandwidth. Thus providing service provider with full flexibility of their network transport medium, all RadioTel products includes REM/RNM RadioTel Element/Network Management compatible with SDH/Sonet standards. RadioRingTM IP targets any application, which requires IP interconnections or any other network solution providing voice along with packet switching to their customers simultaneously e.g. cellular 2G and future 3G networks, internet service providers, Telecom mixed traffic networks etc. About RadioTel Ltd. RadioTel Ltd. (http://www.radiotel.co.il) is a wireless network solutions company. RadioTel is a provider of intelligent wireless/fiber SDH/SONET & IP systems supporting broadband access, cost effective wireless multi-service ATM, FR, Voice), and survivable network solutions while at the same time providing seamless extension of fiber-based infrastructures. RadioTel's RadioRing(TM) product line is engineered to support broadband infrastructure needs and to operate at wide range of licensed frequencies worldwide.

To: Bernard Levy who wrote (10503)	2/20/2001 9:56:45 PM
From: Frank A. Coluccio	Read Replies (2) \| Respond to of 12823

It may actually be 'because' of reduced capital spending that these higher-speed radio systems may stand a chance. Compare the costs of a radio link to that of trenching and provisioning a fiber build for similar distances. The carrier who once offered radio only as a parallel back-up for proposed linear fiber builds may now find it to be a more enticing vehicle to bring them to breakeven (dare I suggest profitability?) as the primary, as well. Let's face it. Many SONET pipes today do not use the features for which SONET was designed. Instead, they terminate in 7500 type CPE routers where they are immediately converted to High Speed Serial Interface breakouts to support Ethernet and or Layer 3 routing, anyway. A less-inexpensive native GbEthernet radio link may make eminent sense as a substitute, especially in places where fiber is sparse or non-existent.