Trio Calendar Not Synchronizing

Occasional Contributor

Trio Calendar Not Synchronizing

We have

1. Polycom Trio 8800 with UC Software

2. Hybrid Exchange Configuration

3. Skype for Business 2015 on premise environment

4. Exchange On Premise account :

5. O365 account :

The situation we have currently :

Logon using On premise

1. Logon with on premise account xxx@domain .com

2. EWS deployed

3. calendar and Contacts synched

4. Everything worked fine

Logon using O365

1. Using O365 account

2. EWS not deployed

3. Calendar and contact not synch


So anyone has an idea how to make it work using O365 on Trio 8800 at Hybrid environment ?

Thank you

Message 1 of 2
Luca Vitali
Occasional Advisor

Re: Trio Calendar Not Synchronizing


we have many deployments with Trio, SfB and Exchange Hybrid.

The key point to have everything working smootly is to use the SAME UPN account on SfB and Exchange.

For example if you have an account for your Trio on SfB On-Prem like and the Exchange Room Mailbox associated is on Exchange Online, you have to use online also, normally using AADC to replicate On-Prem AD Account on Office 365 (Azure AD)

So in your case I see you have on-prem and online, this is bad.



Message 2 of 2