Daniel-Constantin Mierla writes:
There is already something related to the branch in the rtpproxy function flags, see:
rtpproxy flags 1, 2, 3, and b correspond to rtpengine via-branch values 1, 2, auto, and extra.
the question is if 3 or extra is used, what value can be assigned to extra_id_pv to uniquely identify the next branch to be created by t_relay().
-- juha