Hi, I used pjsip 1.03 and register to SIP server ONLY (without STUN, without ICE, without TURN), and also use the SIP server as outbound proxy. Sometimes only has one way voice in this configuration, I am wondering whether the on-way voice is cause by the NAT issue. How to enbale NAT or how to know the NAT is used or is enabled in this configuration? Thanks, -fcch
