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To: Scott Zion who wrote (327)9/27/1999 8:39:00 AM
From: Secret_Agent_Man  Read Replies (2) | Respond to of 792
 
CUSTOMERS

We target service providers worldwide that have broadband wireless
spectrum rights or are planning to acquire rights to deliver broadband services
to subscribers. We began shipping the beta AirStar system to service providers
in the third quarter of 1998. Our direct sales in most cases are to our system
integrators, Lucent and Siemens/Italtel, or to distributors that in turn sell to
service providers. The following is a partial list of service providers or
enterprises that have purchased or deployed our AirStar system, either as a
trial system or to carry traffic to subscribers, and the locations of
deployment, and in connection with which we have recognized revenues in
excess
of $80,000.

- Advanced Radio Telecom (Norway)
- Airtel (Spain)
- AT&T Local Services (U.S.)
- Byblos Bank (Lebanon)
- COMSAT Peru, S.A.(Peru)
- CTI Movil (Argentina)
- Formus Communications, Inc.
(Hungary)
- Future Communications Company
(Kuwait)
- Infostrada (Italy)
- KG Telecommunication Co. Ltd.
(Taiwan)
- Medunet (Saudi Arabia)
- NTL (U.K.)
- Retevision (Spain)
- RSL Communications (Austria)
- TechTel (Argentina)
- WinStar

Also, note AT+T holds STOCKHOLDERS by Series***The Series A Purchasers
(Series A Preferred Stock)

Shareholder Number of Shares
----------- ----------------
***AT&T Venture Company, L.P. 3,222,222
Series B Purchasers (Series B Preferred Stock)

Shareholder Number of Shares
----------- ----------------
***AT&T Venture Company, L.P. 725,000
The Series C Purchasers (Series C Preferred Stock)

Shareholder Number of Shares
----------- ----------------
Pan Dacom GmbH 285,714

***AT&T Venture Company, L.P. 142,858
***Citicorp 1,428,572
The Series D Purchasers (Series D Preferred Stock)

Shareholder Number of Shares
----------- ----------------
***Italtel SpA 1,285,347 = SIEMENS



To: Scott Zion who wrote (327)9/27/1999 5:32:00 PM
From: Bernard Levy  Read Replies (1) | Respond to of 792
 
Hi Scott:

Re QAM and MMDS/LMDS. QAM signals require a high signal
to noise ratio. LMDS signals are more susceptible to rain
fade than MMDS signals, so that under rainy conditions,
the required signal to noise ratio is not present.
The ideal scheme for LMDS is really to use a high-order
QAM modulation scheme in dry weather, and fall back
on a lower order scheme when rain starts.

MMDS is essentially immune to rain.

Regards,

Bernard Levy