Covad has settled its anti-trust suit with Verizon.

The settlement ends all litigation between the companies, as well as billing disputes. Financial terms were not disclosed.

Covad was among the first of the competitive local exchange carriers formed in the wake of the US Telecommunications Act of 1996, which called for regional incumbent carriers such as Verizon to let other companies offer services over their lines.

Covad sued Verizon, then Bell Atlantic, in 1999 alleging price-gouging, discrimination and obstructing access. In 2001, Verizon sued Covad saying the company had falsified trouble tickets concerning Verizon phone lines.

In a related deal, Covad's existing wholesale customer agreement with Verizon was expanded, allowing Covad to offer services over lines being used by resellers of Verizon voice services.

Covad also announced a separate agreement with MCI, currently being acquired by Verizon, in which Covad will become a preferred provider of local access and network services to MCI's DSL customers.

Covad provides DSL, T-1 leased line, VoIP and Web hosting services. It had about 580,000 broadband lines in service at the end of 2005's third quarter, about 230,000 of those for businesses and the remainder for consumers, according to the company.