Sprint sues Comcast, Cox, Time Warner over VoIP patents
12/20, 5:50pm
Claims infringement on 12 VoIP patents
Sprint has filed lawsuits Monday against Time Warner, Comcast, Cox, and Cable One. The complaints against the four were filed separately in a Kansas City federal court. The US' third largest wireless carrier alleges that each cable provider infringed on 12 patents that it holds for digital voice calls sent over landlines.