Progress of LimeSDR with VoLTE?

Has anyone been successful in running the LimeSDR with an LTE stack and IMS to test VoLTE capabilities?

Also, does anyone know if the below setup requires a radio like the LimeSDR, there doesn’t seem to be any indication of there being a radio?

This has been done with Amarisoft LTE stack, which incorporates IMS.

That page specifies “4G Casa Smallcell”, but I cannot see why the same setup would not work if you were to change this for a LimeSDR with Amarisoft LTE or srsLTE for the eNodeB instead.