Case9: nCell-Femto-F2240-Terminal not support VONR register failure

Issue Description:

Terminals not support VONR register failure.

Troubleshooting Procedure:

Check the cause of “UEContestReleaseRequest” and it shows “ims-voice-eps-fallback or rat-fallback-triggered”

Femto version 5GNR_fa.tdd.fr1.2.3.0_457 increases capability of VONR determine. When The gNB enables VONR feature and 5GC writes card for 5QI1 bearer. If terminal does not support VONRfunction, eps-fallback will be triggered and fail to register.

Confirm UE capability, if UE supports voice over NR.

Solution:

(1) Delete vonr configuration if not test vonr.

(2) Disable 5QI1 bearer when 5GC write SIM card

(3) Turn off VONR capability determine by odi commands: odi -n cpcellapp0 fto-set-vonr-ignore-uecap 1

Troubleshooting Methods: Download