The Federal Trade Commission (FTC) has filed a lawsuit against a Voice over Internet Protocol (VoIP) service provider that allegedly facilitated and assisted telemarketers in sending a large volume of illegal robocalls. The FTC claims that this provider allowed telemarketers to make hundreds of millions of unsolicited calls, violating the Telemarketing Sales Rule (TSR) and the Do Not Call (DNC) provisions. The lawsuit seeks to stop the company from engaging in these illegal practices and obtain monetary penalties. The FTC's action is part of its ongoing efforts to combat unwanted and illegal robocalls and protect consumers from fraudulent telemarketing schemes.