I'm trying to set up the RemoteHams RCForb client to control my remote IC-7610 located about 500 miles from my QTH. The radio control functions work perfectly through the software, but I'm experiencing significant audio latency that makes phone contacts nearly impossible. My internet connection tests show 45ms RTT to the remote site, which should be acceptable. Has anyone successfully minimized this latency with RCForb? Currently using default buffer settings with 48kHz audio sampling.

Check your audio buffer settings in RCForb - try reducing both transmit and receive buffer sizes to minimum values your connection can handle without dropouts. I had similar issues until I dropped mine to 256 samples.

Are you using the optional ORB Control Device? I found that PTT delays were much worse when relying on software VOX. Hardware PTT through the ORB unit cut my transmit switching time in half.

Consider switching to wfview if you're using Icom - it handles audio streaming more efficiently than some generic remote solutions. The latency difference was night and day for me on similar distances.