This looks like an Asterisk bug.
Unfortunately the log is verbosity 3.
We are running Asterisk 1.6.2.17.2 with FreePBX 2.8.1.4
Last valid call was at 13:06 from 5144390648 to Dest 5147489836. It get’s disconnected with
"[2011-05-01 13:06:54] WARNING[3160] chan_sip.c: sip_xmit of 0xb68262b0 (len 608) to 174.47.40.244:51815 returned -2: Interrupted system call"
and then Asterisk is locked up until I reboot the system.
During that time I was actually on another call “9721818…” and even though the call did not get disconnected it was not recorded in the CDR.
I don’t know how to attach a file so the log is available at this link:
hxxp://dcitelecom.com/FreePBX/_.logs/
(replace hxxp:// with http)
Search for the string ***. This is the actual untouched log. At 13:06 Asterisk locks up and the log stops recording for 15 minutes. Then it starts recording again but Asterisk is still locked up and we can’t make outbound calls.