Piaf Asterisk 1.6.x FreePBX 2.7.x Sip Trunks from cable company No TDM style cards Dell R210 Server 2 NICS --- LAN 192.168.1.x \-WAN outside IP no router iptables filtered hard dual default gateways so vpn to router to lan works They have 10 sip trunks or "lines" from the cable company. Well, they have 10 phone numbers and 10 call sessions. It doesn't matter what number is dialed, they can just have 10 calls at a time. Only one number is published so all calls are coming in with that DID tagged to it. They rarely have over 4, one time they had 6 concurrent calls. So, low usage rates, so I don't think anything is getting overloaded. How do I go about tracking down the cause of dropped calls? Looking at the FreePBX call logs the average call is around 55 seconds long. I am getting reports from users that longer calls, say 15 minutes, are getting dropped. I will try to get more specific details tomorrow when they are open. I glanced at the /var/log/asterisk/full log files and see the ending of calls but I can't tell if they where hung up on purpose or dropped. Is there any way to tell this?