Hold up, this is a tricky one. I'm going to have to go with Option D. That audio conferencing license seems like it might be necessary for the Direct Routing deployment.
I'm leaning towards Option E. The question states they're using Office 365 E3, which includes Teams, so the Teams Phone Standard license should be sufficient.
Paola
5 days agoAmalia
9 days agoAmina
9 days agoGennie
10 days agoJerlene
11 days agoSylvia
14 days ago