Important: The Skype for Business Server 2015 administrative tools should be installed on a separate server that has access to connect to the existing Lync Server 2010 deployment.The Move-CsUser cmdlet to move users from your on-premises deployment to Skype for Business Online must be run from the Skype for Business Server 2015 administrative tools connected to your on-premises deployment. UB's Skype for Business server is not configured to dial phone numbers. Hello, Hopefully you can help. We have recently purchased the real presence trio 8800 visual + to use in our new conference room and to use it with skype for business, the sku is 2200-66070-019 fyi, and i have also updated it to 5.4.4.7609, but i cant seem to find any. Logging onto the Skype for Business front-end server and reviewing the Lync Server logs show that event ID 32054 errors are logged and refer to the users who have complained about the issue: Log Name: Lync Server Source: LS Storage Service Event ID: 32054. Storage Service had an EWS Autodiscovery failure.
Skype for Business uses these ports and protocols:
443 TCP (HTTP) - Used by Skype for Business clients/Lync connecting from outside the intranet for SIP communications
![Configured Configured](/uploads/1/2/4/3/124390697/101297499.png)
1024-65535 UDP/TCP - Port range used for inbound and outbound media transfer through the external firewall
Skype For Business Mac You're Not Configured To Connect To The Server Free
6891-6901 TCPPort range used by Skype for Business/Lync clients for file transfer
Make sure your firewall is not blocking these and it should work. I suspect that it is a firewall issue since it works internally on the same network.