CCE ON-Premise users voicemail fails after the outage yesterday
I created a ticket with Microsoft already but I figured maybe someone can help in the meantime as Microsoft doesn't appear to be responding very quickly on this matter. After yesterday's widespread outage for our Skype for Business Online users, we are now having issues with our S4B-CCE On-Prem users and voicemail. When someone calls an On-Prem user they can reach the user but they never make it to their voicemail greeting. I grabbed some of the sip messages and this is a snippet from what I'm seeing. ms-diagnostics: 23;source="MedServer.domain.local";reason="Call failed to establish due to a media connectivity failure when one endpoint is internal and the other is remote";component="MediationServer";Exception="Proxy side ICE connectivity check failed.";ICEWarningFlags="BaseAddress="{localipaddress1}:54784";LocalSite="{localipaddress1}:50070";RemoteSite="{remoteipaddress1}:5446";MediaEpBlob="ICEWarn=0x412a,ICEWarnEx=0x0,LocalMR={localipaddress2}:3478,RemoteMR={remoteipaddress1}:51816,PortRange=49152:57500,RemoteMRTCPPort=51816,LocalLocation=2,RemoteLocation=1,FederationType=0,StunVer=0,CsntRqOut=0,CsntRqIn=0,CsntRspOut=0,CsntRspIn=0,Interfaces=0x2,BaseInterface=0x2,IceRole=1,RtpRtcpMux=0,AllocationTimeInMs=210,FirstHopRTTInMs=0,TransportBytesSent=6387,TransportPktsSent=219,IceConnCheckStatus=5,PrelimConnChecksSucceeded=0,IceInitTS=3728302164984,ContactSrvMs=204,AllocFinMs=254,FinalAnsRcvMs=4422,ReinviteSntMs=14925,BlobGenTime=3728302179909,MediaDllVersion=6.0.8953.265,BlobVer=1"" ms-diagnostics-public: 23;reason="Call failed to establish due to a media connectivity failure when one endpoint is internal and the other is remote";component="MediationServer";Exception="Proxy side ICE connectivity check failed." ms-endpoint-location-data: NetworkScope;ms-media-location-type=intranet IP addresses have been removed for security reasons.Failover-Backup options for S4B CCE on Prem
We are looking into what options we have for a failover process more in the lines of if my ISP goes down. While digging through my INI file, on my CCE on prem S4B server, my DMZ IPv4 address might be holding me back with making this an easy proces. We currently have one AudioCodes appliance running my CCE on prem servers connecting to physical PRI's from a local vendor in my area. We have two different ISP Circuits in my building provided by two different vendors. Is there a good way to cut back and forth between the two circuits if my primary circuit should go down?