How can I fork a call to a new registered endpoint? Here is the scenario: Callee has 2 devices: dev1 online (registered), dev2 offline 1. An incoming call to the user, dev1 is ringing 2. dev2 register now 3. fork call to dev2 Call flow as below ( https://gist.github.com/dylin/5ef157f2bc4da8b1c0b145c03e9efcfd): Caller | FS | dev1 | dev2 ----------- ----------- ----------- ----------- | INVITE | | | |------------>| | | | | | | | | INVITE | | | |----------->| | | | | | | | | REGISTER | | |<-----------+------------| | | | | | | INVITE | | | |------------+----------->| | | | | I tried freeswitch.Session("sofia/to/dev2", lega) to originate call to dev2, and dev2 got call. However if dev1 answered call, it won't cancel INVITE to dev2 as a normal fork. Any suggestions are welcome. Best regards, Danyi Lin