Purple Communications has closed its IP Relay service, leaving Sprint as the only service in operation. Last year Sorenson discontinued its service. A Purple spokesperson said in a video blog post, the move comes in response to the FCC's decision to curtain reimbursements. Earlier this year, the FCC said it was fining Purple millions of dollars for improper billing--a claim Purple has denied. You can read more here. IP relay is a way for the deaf to connect through computers or a smart phone. In the video below, Purple's senior director of operations Diana Herron explains more.