Hi all, I know you can set the upper/lower RTP port limit in autoload_configs/switch.conf.xml but, is it possible to have an upper/lower limit set and change it for a specific call? For example: switch.conf.xml has: <param name="rtp-start-port" value="16000"/> <param name="rtp-end-port" value="32000"/> We have certain clients that require a VPN connection to reach our servers, and the VPN blocks all UDP traffic from ports >10000. One solution would be of course just to lower our range, ok... But is there a way that I can set the RTP port range for a specific call? Something like this in diaplan: [...] <action application="set" data="rtp-start-port=3000"/> <action application="set" data="rtp-end-port=4000"/> [...] I don't know if this is doable some way... If FS doesn't have this option, maybe with a Kamailio + rtpengine in front we could potentially achieve this? Thanks! Best regards, Joel.