Inter-eNodeB VoLTE CoMP implementation

Hi. Have any one implemented " Inter-eNodeB VoLTE CoMP" feature in Huawei under VOLTE?

I have implemented it but only 2 sites out of 300 shows result which is also too less in number. I have even changed the values of paramertes too but it didnt result any improvement.

I have changed following:

Activated nodeb license.
UlVoiceJROverRelaxedBHSw from off to ON
UL_COORD_RES_ALLOC_SWITCH from off to ON
UlCompA3OffsetForRelaxedBH from -20 to -16
UlCompA3Offset from -20 to -16

I am checking the following counters for values showing if this feature is getting any values.

L.ULCoMP.ULRelaxedBHCoMP.User.Avg
L.ChMeas.ULRelaxedBHCoMP.PRB.Avg

Am I missing anything ?