During a call between X-Pro and Sipura, when Sipura disconnects first, X-Pro doesn't receive any message signaling that call ended and keeps the call on connected state. The bigger problem is about the accounting issue. On my accounting table, I have two enters for this call (two BYE messages, one w/ 200 OK and the other w/ 408).

I'm thinking about remove all 408 records from accounting table, and put a crontab enter to do this everyday.