PairGain Technologies, Inc. PairGain is a world leader in the design, manufacture and marketing of DSL (Digital Subscriber Line) networking systems. Service providers and private network operators worldwide use PairGain's products to deploy DSL-based services such as high-speed Internet, remote LAN access and enterprise LAN extension. Comstock Telcom specializes in central office and transmission equipment, provider of new, reused and refurbished telecommunication products.

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