[Freeswitch-users] Need help enabling some variables in b-leg

Hi, I need to have local_media_ip, local_media_port, remote_media_ip, and remote_port to be available in the b-leg. Is there anyway to do that? Since these variables are only created after the call has been answered, I can't do <application name="export" value="remote_media_port=${remote_media_port}> before the bridge app. Does anyone know if there is any good way to get around it? thanks, jb