No voice message in voice notification

Hi,
I have followed all the steps to get the voice notification, still I can’t hear a message when I pick up the phone. Please help, we are bit desperate for time now. Thanks in advance.

My system console:

13:28:36  Agent    cannot find invite client transaction for call e3OmEB9h-1403180914633@SCADA

13:28:36  CallManager  Error state received from call manager. Reason: Proxy Authentication Required [407]

13:23:24 Agent cannot find invite client transaction for call FuHWZWZ6-1403180603612@SCADA

13:23:24 CallManager Error state received from call manager. Reason: Proxy Authentication Required [407]

13:23:18 PropertiesFactory Loading properties files from jar:file:/C:/Program%20Files/Inductive%20Automation/Ignition/tomcat/webapps/main/WEB-INF/lib/wicket-extensions-6.1.1.jar!/org/apache/wicket/extensions/Initializer.properties with loader org.apache.wicket.resource.IsoPropertiesFilePropertiesLoader@1a85fd73

13:23:18 PropertiesFactory Loading properties files from jar:file:/C:/Program%20Files/Inductive%20Automation/Ignition/tomcat/webapps/main/WEB-INF/lib/wicket-core-6.1.1.jar!/org/apache/wicket/Application.properties with loader org.apache.wicket.resource.IsoPropertiesFilePropertiesLoader@1a85fd73

13:22:35 PropertiesFactory Loading properties files from jar:file:/C:/Program%20Files/Inductive%20Automation/Ignition/temp/gateway2051986378132413132.jar!/com/inductiveautomation/ignition/gateway/web/pages/config/SystemStatus.properties with loader org.apache.wicket.resource.IsoPropertiesFilePropertiesLoader@1a85fd73

13:22:10 BasicTransactionProcessor Subscribed address set did not match SubscriptionModel address set; resetting to SubscriptionModel

From the logs you include seems to be a issue with a possible proxy server in your network ? Could also attach an export of your gateway console logs? Its hard to tell what is causing the issues based on the logs you included.