So do I, since the last rebuild from git a few days ago. In autoload_configs/switch.conf.xml, I have: <!-- RTP port range --> <param name="rtp-start-port" value="10000"/> <param name="rtp-end-port" value="20000"/> and iptables:-A INPUT -i eth0 -p udp -m udp --dport 10000:20000 -j ACCEPT The 'netstat' command returns about 15 open UDP ports. --- On Mon, 7/23/12, Adam Kelloway <adam.kelloway@newpace.ca> wrote: From: Adam Kelloway <adam.kelloway@newpace.ca> Subject: Re: [Freeswitch-users] [CRIT] sofia_glue.c:1083 No RTP ports available! To: "FreeSWITCH Users Help" <freeswitch-users@lists.freeswitch.org> Date: Monday, July 23, 2012, 6:17 AM I have recently experienced this exact behavior. There doesn't need to be any active calls. It does seem related to the fact that an outbound call was previously made through google voice. A restart also resolves the issue for me as well. If there is already a JIRA ticket for this, can someone post the link? I can try and help by providing more testing details.