Hello

I want to achive this: Sipp1 -> FS -> Sipp2

Sipp1 emulates a inbound calls (easy to achive)
Sipp2 should emulate a registered user (i.e. register with FS and then just wait for calls and hangup when sipp1 hangsup)

How do I configure sipp as "Sipp2"?

Thanks,
  Jonas