Is this a CMR Hyrbid deployment, or something else?
Can you tell us more about your environment. Please provide as much detailed information as possible, just saying something isn't working, doesn't tell us enough information to be able to help.
What conference bridge are you using, ie: MCU, TelePresence Server, CMS?
Is the conference bridge you're using set to "Allow WebEx Booking" under it's Settings wtihin TMS?
