Atle Samuelsen writes:
At the moment SER does'nt do recursion on 302. If ser had done this, The world would be a bether place for all us.
it can be made to recurse on 302. in fact, i once patched ser to do so by turning 302 into a new invite. but then i started to think that the called user MUST have the choice of not paying for the forwarding and 302 is meant for that very purpose. if the user wishes to pay, then (as i said earlier) you instructs ser to FORWARD the call. if the called user does not want to pay, but wants to give the caller the choice, the user replies with 302.
so both options are and should be possible. talk to your SIP UA vendors if they don't properly support 302.
-- juha