One known issue is that the light for Channel C doesn't illuminate, but the channel still functions properly.

Using the Clear-Com RM - 400A remote station is easy. Just connect it to your communication system as per the basic instructions. You can use each of the four channels to communicate. Remember, even though the light on Channel C doesn't work, the channel itself is fine and can be used normally. For maintenance, keep it in a dry and clean place. Wipe it with a soft cloth regularly to prevent dust accumulation. If you face any other problems, contact the support team.