Known Issue: The 'Announce' and 'All Talk' buttons are absent.

To use this Clear - Com RM - 704 intercom remote station, first connect it to the main system according to the instructions. Then, you can start using the available channels to communicate. Remember, this unit has a known issue where the 'Announce' and 'All Talk' buttons are missing. When handling it, avoid dropping or subjecting it to strong impacts. For maintenance, keep it in a dry and clean place. Regularly check the connections to make sure they are secure. If you encounter any other problems, contact the Clear - Com support team.