Cadant

Copper Mountain Network

This company supplies digital subscriber line communications hardware and software to telecommunications service providers for high-speed data and voice delivery using existing copper infrastructure.

Cerent

Cerent develops optical transport platforms that consolidate add-drop multiplexing and data switching for telecommunications service providers.

Cascade Communications

This company develops wide area network switching products for public carriers and private network providers to integrate data, voice, and video traffic.

Sycamore Networks

This company manufactures optical networking equipment and software that enables telecommunications service providers to manage bandwidth and high-speed data traffic.

iMagicTV

This company develops software that enables telecommunications providers to deliver television, web access and interactive services over high-speed internet connections to residential customers.

Broadband Networks

This company designed and manufactured broadband wireless radio equipment for telecommunications service providers.

Positron Fibre Systems

This company manufactures telecommunications equipment that extends gigabit broadband services to subscribers in multi-tenant buildings using existing telephone or coaxial wiring.

BelAir Networks

This company provides wireless networking equipment and software to telecommunications service providers and mobile network operators.