In our organization we use Starleaf Breeze for videoconference. However, we also have Skype for business online as part of our Office365 Enterprise E3 license.
However, when using Skype for business we cannot call external partners. In the Office365 admin center, under Skype for business, we have enabled open federation, but still we cannot call anyone outside our organization.
If i call a test site like email@example.com with our Starleaf Breeze client, the call is immediately successful. But if i call the same number with Skype for Business, the call just ends in a "firstname.lastname@example.org was not found"
What am i missing here?