you can call an mcu session just as you would call another isdn number.
however, before you attempt to call, consult with the network administrator or the remote parties to make sure that you are calling the mcu number currently assigned to you.
each party, yourself included, calls the address or isdn number of the mcu (or a set of isdn numbers, if you are calling to more than one bri). the mcu collects the calls and mixes them to create the multi-party videoconference.
· to join a multi-party videoconference
dial the mcu from the phone book or manually.