Commands to check VoLTE drops on LTE

4G LTE
,
1

Hello Experts,

What are the commands to check VoLTE drops on LTE?
In Ericsson System.

2

In Huawei you have: (L.E-RAB.Rel.S1Reset.eNodeB.QCI.1[1526728818]+L.E-RAB.AbnormRel.eNBTot.QCI.1[1526730539]+L.E-RAB.AbnormRel.HOOut.QCI.1[1526727326])/L.E-RAB.SuccEst.QCI.1[1526726669].

Probably there are similar ones in Ericsson.

3

In Ericsson it is:
pmErabRelAbnormalEnbActQci

4

Also you need to add:
pmerabrelAbnormalMmeActqci1