Answering to my own question: use the same set order both in offer and answer.

-- Juha

When set_rtpengine_set() is called with two parameters before rtpengine_offer(), e.g.

set_rtpengine_set("1", "2"); rtpengine_offer();

it was not clear to me from rtpengine README, if the sets need to reversed when set_rtpengine_set() is called before rtpengine_answer(), i.e.,

set_rtpengine_set("2", "1"); rtpengine_answer();

or can the order of the sets be the same as it was in case of rtpengine_offer()?

-- Juha