[Freeswitch-users] Variable in Bridge string

Hi I have a strange problem creating a bridge string from LUA. The LUA script returns a bridge string which looks like this: sofia/gateway/${distributor(my_dist)}/1773XXXXXXX I pass this bridge string to the bridge app in the dialplan: <action application="bridge" data="${bridge_string}"/> On executing the dialplan I get the following error: Invalid data (${bridge_string} contains a variable I have tried executing the bridge app from within the lua script it works but I would prefer to have the dialplan process it. I am on Freeswitch 1.0.6. Thanks Ahmed