Following the lead of competing Internet service providers, Earthlink is test marketing a trial of a voice over IP (VoIP) phone service with Covad, a purveyor of business communications services. Earthlink will begin the trial in October in three markets : Dallas, San Francisco and San Jose, and Seattle.

The service will be powered by Covad’s Digital Subscriber Line Access Multiplexer (DSLAM) technology over existing "last mile" copper phone lines.

Read the complete story . (BetaNews)