[Freeswitch-users] pl HELP! how to change conference's caller-id-number at run-time?

Hi All: I want when the bridging conference is inviting someone to start the conference, the caller is shown as the real caller id number rather than whats stored in 'caller-id-number' in conference.conf.xml. I have tried to change the 'effective_caller_id_number', it only affects when its a bridging call.