The specified Exchange Unified Messaging dial plan is unknown

Hello!! Today, we start with this beautiful ms-diagnostics phrase….. ms-diagnostics: 15003;reason=”The specified Exchange Unified Messaging dial plan is unknown”;source=”Frontend01.xxxxxxxxxxx”;dialplan=”DialPlan.xxxxxxxxxxt”;aaname=”AutoAttendant”;appName=”ExumRouting” Server: ExumRouting/6.0.0.0 Content-Length: 0 So… We already check all services in Exchange Server, ran a lot of cmdlets, like: Get-ClientAccessServer, New-CsExUmContact, Get-ExchangeCertificate, New-UMDialPlan, Get-UMDialPlan, Set-UMDialPlan, Get-UMDialPlan | fl, Set-UmService, Get-UmService | fl, Enable-ExchangeCertificate, Set-UMCallRouterSettings, Get-UMCallRouterSettings | fl, … Continue reading The specified Exchange Unified Messaging dial plan is unknown