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Cellular operator which acquired smaller cellular operators in areas near or between major cities.
Developed the first fast-packet switching technology for ATM and frame- relay networks.
The first venture-backed Internet Service Provider.
Developed software to plan and manage wireless networks.
Develops imaging agents for use in MRIs.
Developer of software for verifying electronic circuit designs.
Developed distributed network architecture for cellular systems, designed to scale across areas with varying subscriber density. Celcore was acquired by DSC Communications Corp. (NASDAQ: DIGI) in 1997, then Alcatel USA (NYSE: ALA) in 1998.