RMX / RealPresence Collaboration Server version 8.6.X and above supports RMX 2000 / 4000 with MPMRx card, RPCS 1800, RPCS VE
RMX / RealPresence Collaboration Server version 8.5.X and below supports RMX 1500, RMX 2000 / 4000 with MPMx card, RPCS 1800, RPCS VE
RMX version 188.8.131.52.112 replaces version 184.108.40.206. There have been several updates made and it is the recommended revision to use if the device has been updated to 7.8. Please see the release notes for details on this version update.