Hi, my problem is, I need the local SIP address and the external address for the candidates. The setting is vars.xml <X-PRE-PROCESS cmd="stun-set" data="external_rtp_ip=stun:stun.freeswitch.org"/> Sofia profile: <param name="stun-enabled" value="true" /> <param name="stun-auto-disable" value="false" /> <param name="rtp-ip" value="1.2.3.4" /> <param name="sip-ip" value="1.2.3.4" /> <param name="ext-rtp-ip" value="$${external_rtp_ip}" /> <param name="ext-sip-ip" value="$${external_rtp_ip}" /> Call Cmd: originate {include_external_ip=true,media_webrtc=true}sofia/gateway/GW_SBC2_B2Bua/123 &park In this case the ICE candidates in de SDP are OK but the Contact header have the external sip address. If I do unset the "ext-sip-ip", then the Contact header is OK but I'm missing the external ICE candidates. What can I do that the STUN candidate will set to the SDP without the "ext-sip-ip" config? Thanks a lot Alex