Anritsu MT8820C - Page 257

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5. Whether talking or not into the microphone, no voice can be heard from the UE speaker.
6. End the call from the UE. (Or press VoLTE End Call in the lower-right corner of MT8821C Signaling screen.)
7. The MT8821C IMS status changes from IMS ConnectedIMS Idle.
8. Press VoLTE Start Call in the lower-right corner of the MT8821C Signaling screen.
9. The MT8821C IMS status changes from IMS IdleIMS Ringing, then after answering the phone, the status
changes from IMS RingingIMS Connected.
10. Whether talking or not into the microphone, no voice can be heard from the UE speaker.
11. Press VoLTE End Call in the lower-right corner of the MT8821C Signaling screen. (Or end the call from the
UE.)
12. The MT8821C IMS status changes from IMS ConnectedIMS Idle.
NOTE 2: When the call processing status has returned to Idle due to unexpected call disconnection (e.g.
End Call key press or Call drop from UE), please press the VoLTE End Call key twice to return the
IMS status to Off. Then, restart the UE.