You have a Skype for Business Server 2015 infrastructure that consists of two sites. The sites are located in New York and Rome. Each nterprtse V ofce deployed and contains separate dial plans and voice policies.
You plan to deploy dial-in conferencing to both sites. In each site, you create a dedicated conferencing policy. You assign the respective users in each site. You create a dial-in conferencing access number.
When you attempt to assign a region to the number, you discover that the regions are unavailable. You need to ensure that you can add a region to the dial-in conferencing access number.
What should you modify ?
A. the meeting configuration settings
B. the dial plans
C. the conferencing policies
D. the voice policies
