OPINION AND ORDER
SCHEINDLIN, District Judge.
Plaintiffs Aerotel, Ltd. and Aerotel U.S.A., Inc. (collectively "Aerotel") have sued RSL Communications, Ltd. ("RSL Ltd."), Deltathree.com, Inc., and RSL Com Primecall, Inc. ("Primecall") (collectively "RSL") for infringing its U.S. Patent Number 4,706,275 (the "275 Patent") through the use of certain prepaid calling card equipment and software (the "NACT System") purchased from NACT Telecommunications...
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