Tierra Hits Qwest, Others With VoIP Patent Suit
The San Diego-based company, which designs and operates Internet telephone technology and offers other products including prepaid calling cards, filed suit on Friday in the U.S. District Court for the Eastern District of Virginia.
The suit claims that all three companies have sold or offered VoIP products that incorporate Tierra's packet transfer technology.
The patent-in-suit is U.S....
To view the full article, register now.