I have tested c146ef490e1d7d35add7d3ee593f6d3d20e327ad with config above. Issue present. Before I tested c146ef490e1d7d35add7d3ee593f6d3d20e327ad with kazoo config. This commit with kazoo commit works.
If I comment `pv_buffer_slots` or delete any variable from the config file, then Kamailio started properly.
I also added into default Kamailio config as the first command in `request_route` ``` append_hf_value("Call-Info", "$(hdr(X-NenaCallId)[0])"); ``` With this config, Kamailio started.