I have forwarded a call to another gateway and after certain period of time i want to transfer that call to an extension and hangup call to the gateway how can i do that?

Basically an outside call lands to FreeSwitch, i forward it to another FreeSwitch at different location but after say 2 minutes i want the call to routed back to internal extension and hangup ongoing call to second FreeSwitch.

What is the best way to achieve this?