[Freeswitch-users] Inbound and then outbound call?

Hello, It would be a great help if someone can guide me. 1. I would like to first receive a call, perform certain validations. (Able to do this via mod_managed application that handles call from dialplan). 2. Now, I would like to dial out to a PSTN number so that received call is connected to this new outbound number. How can this be done? Do I use Originate from within my .NET (mod_managed) code? Do I get charged for both incoming and outbound call until the entire session ends? Is there a way to receive call, validate and then sort of transfer and then terminate the received call so I do not get charged for both? Please help. Thank you.