Hi I've a problem with rtpproxy during a parallel ring scenario. I've two client behind NAT (192.168.10.20 & 192.168.10.50) and when I try to call them in parallel mode (ringall) rtpproxy module sends in to the INVITE the same RTP ports. Is it possible to manage rtpproxy in order to generate a couple of new port for each branch? My rtpproxy string in the kamailio conf (in manage branch section): rtpproxy_manage("bFAIE","192.168.10.10"); Brief extract of 2 SIP INVITE message send by kamailio to natted clients: 192.168.10.10 --> 192.168.10.20 User Datagram Protocol, Src Port: sip (5060), Dst Port: 6090 (6090) Session Initiation Protocol (INVITE) Request-Line: INVITE sip:1001@192.168.10.20:6090 SIP/2.0 Message Header Message Body Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): 1004 1476 1657 IN IP4 192.168.10.10 Session Name (s): Talk Connection Information (c): IN IP4 192.168.10.10 Time Description, active time (t): 0 0 Media Description, name and address (m): audio 62910 RTP/AVP 111 110 0 8 101 Media Description, name and address (m): video 47160 RTP/AVP 102 Media Attribute (a): nortpproxy:yes 192.168.10.10 --> 192.168.10.50 User Datagram Protocol, Src Port: sip (5060), Dst Port: 6090 (6090) Session Initiation Protocol (INVITE) Request-Line: INVITE sip:1002@192.168.10.50:6090 SIP/2.0 Session Description Protocol Session Description Protocol Version (v): 0 Owner/Creator, Session Id (o): 1004 1476 1657 IN IP4 192.168.10.10 Session Name (s): Talk Connection Information (c): IN IP4 192.168.10.10 Time Description, active time (t): 0 0 Media Description, name and address (m): audio 62910 RTP/AVP 111 110 0 8 101 Media Description, name and address (m): video 47160 RTP/AVP 102 Media Attribute (a): nortpproxy:yes