NEW YORK (Bloomberg) – Bermuda-based Global Crossing Ltd., Qwest Communications International Inc., and Level 3 Communications Inc. settled a lawsuit by C2 Global Technologies Inc., which accused them of violating a patent related to a computer network and Internet telephones.

Terms of the settlement were filed under seal, according to the electronic federal court docket in Marshall, Texas, where the trial had started last week.

C2, based in Pittsburgh, claimed the Voice Over Internet Protocol, or VoIP, systems used by the companies infringe the patent and was seeking royalties on any sales or services dating back to 2001.