Tyler Radtke

I'm having an odd problem where call media from a RasPBX endpoint to certain PSTN numbers isn't sent or received. Certain numbers like the echo test at 909-390-0003 work fine, but others like 1-800-FLOWERS return no call media. RTP is set at 10000-20000, but netstat -anp doesn't show that range among open UDP ports. Since iptables commands wasn't installed in RasPBX, I attempted to add -A INPUT -p udp -m udp --dport 10000:20000 -j ACCEPT by installing iptables-persistent with rule.v4 (understanding...