Solved Connection for pickup failed

[sylsau]

we have a small system 3CX Version 18.0 Update 8 (Build 939) incoming calls are handled by a call queue.

Users are Synced with MS365 + Teams.
We have 4 Queue members with ring all settings.
When incoming call one user has every second a failure, see screenshot. The Call notification flashing only quickly on screen, less the one second, so user is unable to take the call.
Have tried different applications Web client/PWA running in Edge, Android App, Desktop app from MS Store, Webapp running in Firefox. have logged out of all except one app, with same results.
Deleted user and recreated with same extension number first try did OK. Next morning same problem.
Cloud Sync to MS365+Teams have something to do with the problem? all other users have same Sync with no problems.

I have given different Roles to User, (usually System admin) no difference.
If incoming call is going directly to that user call is normal and can be picked up.

 

[Charles_3CX]

The queue call us being rejected from the teams side. You must ensure this user is fully integrated with teams, or remove the Microsoft teams phone license from their 355 account.

 

[sylsau]

Thanks, I have removed the Teams phone licence which was setup as a trail a while ago, after overnight sync call queue is working fine.