@jchavanton Thanks for asking some important question, Q1: Yes, Because RTPengine use local hooking in network stack while this module works in prerouting hooking in network stack. Q2: We have completely different designed hash search index based of SDP parameter in session. It no have relation to libnetfilter, Connection tracking or etc. Q3: It composed of two different layer as i mentioned before. LREProxy engine is developed with Python Service, Kernel part and Unix sokect section. Also we are planing to implement the python section with C again, but later:)