PSTN callers can't join a Skype for Business dial-in conference call

When public switched telephone network (PSTN) callers try to join a Skype for Business Online dial-in conference call, they're put in the lobby and then can't join.  
To enable PSTN callers to join a Skype for Business Online dial-in conference call, unlock the conference call by selecting any option other than The meeting organizer in the These people don't have to wait in the lobby list. 

Screen shot of the
This issue occurs because the conference call is locked and the organizer won't receive a notification that callers are waiting in the lobby. Conference calls are locked when the These people don’t have to wait in the lobby option is set to Only me, the meeting organizer in the Outlook invite meeting options or The meeting organizer in the Skype meeting options during the meeting.  

For more information about Skype for Business dial-in conferencing, go to the following Microsoft websites:

Still need help? Go to the Office 365 Community website.

Article ID: 3125611 - Last Review: 02/10/2016 17:26:00 - Revision: 3.0

Skype for Business Online

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