Enlarge / Democrats vs. Republicans. (credit: Getty Images | Linda Braucht) US Senate Democrats today asked the Federal Communications Commission to protect consumers from ringless voicemails, which let robocallers leave voicemails without ringing your phone. The Republican National Committee (RNC), which is already using ringless voicemails, recently asked the FCC to approve a petition filed by a marketing company that sells direct-to-voicemail services.