I have a very simple call plan to allow internal extension to call external PSTN numbers. See below. <extension name="domestic.example.com"> <condition field="${toll_allow}" expression="domestic"/> <condition field="destination_number" expression="^(\d{11})$"> <action application="set" data="origination_caller_id_number=11111111"/> <action application="set" data="effective_caller_id_number=${outbound_caller_id_number}"/> <action application="set" data="effective_caller_id_number=${outbound_caller_id_number}"/> <action application="set" data="effective_caller_id_name=${outbound_caller_id_name}"/> <!--action application="bridge" data="sofia/gateway/idt/$1"/--> <=== NOT WORK <!--action application="bridge" data="[origination_caller_id_number=111111]sofia/gateway/idt/$1"/--> <=== NOT WORK <action application="bridge" data="[origination_caller_id_number=111111]sofia/gateway/idt/$1"/> <=== WORKS!! </condition> </extension> There a couple of things strange here: 1. I have to put origination_caller_id_number inside data field of "bridge" application in order for the dialing out to happen. Why putting it outside as channel variable does not work? 2. Actually because bridge command is for leg-B, really it should be "effective_caller_id_number" not "origination_caller_id_number". Is that right? I'm using IDT express as SIP carrier. I don't know if they changed something or I changed configuration in freeswitch. Now it seems I have to set origination_caller_id_number if I want to use IDT for outbound calls. I'd really appreciate your help. Cheers. Jun