See the Comrex Manual Appendix B: Using Luci Live and Luci Live Lite Apps with Comrex MultiRack

Note: Only the audio codec G722 and AAC, AAC-HE with samplefrequency 48kHz.

Note: If you do not get a return audio signal with LUCI LIVE Lite then the comrex is set to return AAC in stead of G722 which is not supported in the Lite version.