So if I read it right that you refer to MCU/TPS booked meetings via TMS?
Multiway itself is used as the functionality from Cisco to add participants on the fly to a multiparty
conference, so using that word for the booked conferences might cause confusion.
By today I do not see a way for the users to disconnect these ghost rooms without having access
to either the "ghost" system or the TMS / MCU or calling one who has.
But you never know what the future brings, you are not the only one with such issues.
Regards access to the MCU, you can also activate a MCU menu which you can reach by pressing *
there you can get a list of users and also disconnect people.
But this would require to have this feature enabled in general and all participants could do so, so
this might be a security issue (also as other options like dial out are possible).
You can also have a guest and admin role for a room, but that only for preconfigured conferences,
not on TMS booked ones.
For more information about these parts please check the mcu documentation.
If you have some power users in your organization maybe think about letting them have access to
specific meeting rooms on the MCU webinterface or booking / chancing their own conferences.
For h323 calls mxp systems had some more conference control capabilities.
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