Richard Brady writes:
i didn't
find in rfc5626 a requirement that registrar should remove 430
flow contact,
Closest I can find is:
"EP1 no longer has a flow to Bob, so it responds with a 430 (Flow
Failed) response. The proxy removes the stale registration and tries
the next binding for the same instance."
it is thus the job of the proxy, not the registrar, to remove the
currently unusable registration. the proxy could do it either by
sending un-REGISTER request to registrar or via an mi/rpc command. the
former is possible now. the latter requires that instance and reg_id
params are added to ul_rm_contact mi command.
-- juha