@MLE_online the last time I messed with setting up a repeater controller, I used this cute thing that runs on a Raspberry Pi and uses a hat for audio i/o and gpio to watch for incoming carrier from the receiver carrier operated relay (COR) pin, key the transmitter up, and, well, pass audio. It could link your repeater to Allstarlink or other VoIP networks for extension over the internet, but, uh, sillier, it could play back recorded audio files for the ID...