VoLTE will never drop due to scg addition.
But by parameters you can configure to add SCG or not when VoLTE is ongoing.
Similar when SCG is ongoing it can be released or removed when VoLTE is initiated.
Thanks!
Do you know parameter needed to be enabled in menb or sgnb?
What is recommended value and name of parameter?
In my view reverse movement of voice call from 4G to 5G not possible.
No such feature even after VoLTE call SRVCC to 3G then call not be move to 4G if 3G coverage poor.
Parameter is in MeNB.
Name will be vendor specific like “endcSupportduringVolte=false” for example.
If VoNR is enabled, then I don’t think any limitation.
But by nature VoLTE/LTE will have better electric field than NR.
Similarly, 2G/3G have better electric field than LTE.
If during ongoing VoLTE call network send RRC connection release what will happen will call drop or bearer reconfigure?
During ongoing VoLTE call, if users move to cell edge then what will happen to VoLTE call if 5G RAT coverage exist there? Will call transfer to 5G or drop?
LTE to NR handover is supported so if cell is down HO will not get initiated but if UE leaving LTE coverage and entering NR coverage, then based on measurement results HO can be initiated towards NR.