Understood. We ask this because and error with a software update, or with voicemail services can cause this. We recommend to try dialing a network update. Please dial ##72786# and wait 3 minutes while your device turns off and on and completes the network update. Please check the service after this and keep us updated with the results.
We understand. Could you please to make someone call you and leave a voicemail on your phone. Please tell us if you do this and if you get a message from the 9016 a few minutes after this.