Our BCS conference bridge is setup and seems to work properly. However, when multiple participants tried to call in, it says there are no more lines available. I believe only about 4 participants were able to call in.
The BCS bundle with the Netanta 7100 is licensed for only 6 users in the conference bridge. You can purchase more licenses if needed. The BCS Server can support up to 200 users in the bridge depending on server hardware.
Reach out to your ADTRAN sales person or your reseller about purchasing the license upgrades. You can buy them in bundles of 4,8,16, or 32.