Skype for Business Server (SfB) 2015 May 2017 cumulative update supports Hybrid Modern Authentication (HMA). To use HMA with your SfB on-premises, you will need to have on-premises Active Directory f...
Updated Nov 25, 2019
Version 19.0Blog Post
Carolyn Blanding (MS TEAMS)https://techcommunity.microsoft.com/t5/Skype-for-Business-Blog/Hybrid-Modern-Authentication-for-Skype-for-Business/bc-p/218118/highlight/true#M1490
We currently have HMA on our Skype on-prem and Exchange on-prem, but we're having some issues with our Polycom VVX phones. When signing in with BToE or web-sign, or username/password it EWS says is deployed, but we get errors for all the EWS functionality - like calendars, contacts, etc.
These errors are for people that are homed Skype on-prem and Exchange Online. We've manually changed the Exchange Server URL to: https://outlook.office365.com/EWS/Exchange.asmx/ with no luck.
Have you had luck with getting EWS fully deployed? We're on firmware 5.9.2.3446 and have tried many others.