Hi SeVen Du.

Thank for your reply.

 

About question 2: I think in real life (call center), supporters in queue must be known the real Caller_ID_number of  customers. If caller_id_number is replated by 'fifo+<fifo_name>', caller_id_number will be invaluable informations.

So, Is there anyway to preserve Caller_ID_number from the invaluable change as origination_caller_id_name=Queue,origination_caller_id_number='fifo+test_fifo'.