Interesting thing,welcome to give me your suggestion!

i succeed to config a conference room and let iax clients to have a conference.but the style is hidebound.all the clients need to know the conference room number and dial the number they can enter the room.
maybe most of us have an experience of using skype to have a conference.i want my iaxclient have the same or like to realize ?any ideas? any suggestion will be appreciated!TQ in advance.