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Broadband

Cisco, Avaya retain dominant PBX market share

Cisco and Avaya continue to hold the top spots in the overall PBX market share in what has become a challenging segment.

Sean Buckley Mar 16, 2018 1:31pm

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Cincinnati Bell says it's not discontinuing POTS

Jan 10, 2017 11:34am

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AT&T to shut down 13 legacy services

Dec 21, 2016 10:44am

copper wiring legacy networks

Verizon to grandfather TDM voice, data services in Northeast

Sep 27, 2016 11:15am