Skype Hybrid Setup

1.       Connect to SfB Online via PowerShell.

2.       Run this command to check the Tenant configuration

Get-CsTenantFederationConfiguration

3.       Run this command to enable Hybrid configuration on your Tenant

Set-CsTenantFederationConfiguration -SharedSipAddressSpace $True

4.       Run this command on your On-Prem Front-End to check EDGE configuration, important settings are yellowed.

Get-CsAccessEdgeConfiguration

Identity                               : Global

AllowAnonymousUsers                    : True

AllowFederatedUsers                    : True

AllowOutsideUsers                      : True

BeClearingHouse                        : False

EnablePartnerDiscovery                 : True

DiscoveredPartnerVerificationLevel     : UseSourceVerification

EnableArchivingDisclaimer              : True

EnableUserReplicator                   : False

KeepCrlsUpToDateForPeers               : True

MarkSourceVerifiableOnOutgoingMessages : True

OutgoingTlsCountForFederatedPartners   : 4

DnsSrvCacheRecordCount                 : 131072

DiscoveredPartnerStandardRate          : 20

EnableDiscoveredPartnerContactsLimit   : True

MaxContactsPerDiscoveredPartner        : 1000

DiscoveredPartnerReportPeriodMinutes   : 60

MaxAcceptedCertificatesStored          : 1000

MaxRejectedCertificatesStored          : 500

CertificatesDeletedPercentage          : 20

SkypeSearchUrl                         : https://skypegraph.skype.com/search/v1.0

RoutingMethod                          : UseDnsSrvRouting

If settings are not as above, run this command to set it correctly

Set-CSAccessEdgeConfiguration -AllowOutsideUsers $true -AllowFederatedUsers $true -UseDnsSrvRouting -EnablePartnerDiscovery $true

5.       Run this command on your On-Prem Front-End to check existing Hosting Providers,

Get-CsHostingProvider

find the one with ProxyFqdn = sipfed.online.lync.com

Identity : Skype for Business Online

Name : Skype for Business Online

ProxyFqdn : sipfed.online.lync.com

VerificationLevel : UseSourceVerification

Enabled : True

EnabledSharedAddressSpace : True

HostsOCSUsers : True

IsLocal : False

AutodiscoverUrl : https://webdir.online.lync.com/Autodiscover/AutodiscoverService.svc/root

6.       If some settings are different from above, remove the existing Hosting Provider and run this command to create the correct one

New-CSHostingProvider -Identity "Skype for Business Online" -ProxyFqdn "sipfed.online.lync.com" -Enabled $true -EnabledSharedAddressSpace $true -HostsOCSUsers $true -VerificationLevel UseSourceVerification -IsLocal $false -AutodiscoverUrl https://webdir.online.lync.com/Autodiscover/AutodiscoverService.svc/root

Now your hybrid configuration should work