OH, what a headache! RC 210 connected to Hytera VHF repeater. All connections are proper, yada yada. The problem is that you can hear someone transmitting from the repeater over Echolink, you can transmit echolink to echolink, but nothing from echolink back through the controller, except the courtesy tone and a dead carrier. The interface is a ULI (Ultimate Linking Interface). Only the Soundcard on the computer and the jacks on the back plus the DB9 (serial port) are connected. There is an external speaker plugged in on the front. Is there a setting I am missing in the repeater setup? The ULI or Echolink? Thanks.