Vonage, leading provider of digital phone services, announced on Friday the fact that it has reached an agreement with AT&T over their patent dispute, after they previously agreed to settle on November 7.

The company was sued by AT&T, which charged it of offering products that allow users to have a conversation over the Internet, but only based on products that use technology covered by AT&T patents.

Vonage is not at the first lawsuit of this type since in went public in May 2006, as both Sprint Nextel and Verizon Communications Inc sued it, but settled in the end for at least 80 million dollars. The Sprint Nextel deal forced Vonage to license at least 100 patents covering technology for connecting calls from a traditional phone network to an IP network. The settlement with Verizon came after a court decided that Vonage had infringed upon the carrier's patents.

No other details over the terms of the settlement, even if in November, Vonage declared that it might pay AT&T up to 39 million dollars under the settlement.