EarthLink and Covad are teaming up to offer a combination of high-speed Internet and Voice over Internet Protocol telephony services.

The companies said Monday that the package would be offered first in Dallas, San Francisco, San Jose and Seattle beginning in October.
The package will be offered over networks managed by Covad and EarthLink, which is based in Atlanta.

“Our customers are looking to us for an expanded portfolio of low-cost, high quality voice and data products to meet their growing communications needs,” said Steve Howe, vice president of voice services at EarthLink, in a statement. “Partnering with Covad on a market trial of this scale builds upon our existing voice strategy and better positions us to deliver an exciting package of voice and data services.”

Covad’s network includes digital subscriber line (DSL), metro Ethernet and so-called “bonded” T1 services for high-speed bandwidth connectivity.