improved FS stability for high volume installations:

http://wiki.freeswitch.org/wiki/Using_ODBC_in_the_core#.2Fetc.2Fodbcinst.ini_for_MySQL
"From Also note, (see bug below on bottom of page); If you are using the FreeSWITCH pooled resources, then you definitely need Threading = 0 for high call volume. What this does is it "disables a global mutex in the ODBC core that only allows 1 concurrent operation per process regardless of the concurrent connections." (i.e. It slows down when you have too many connections trying at one time)
As far as has been tested, when making changes to the odbcinst.ini, you do not need to restart FreeSWITCH to effect the changes."

Also see http://wiki.freeswitch.org/wiki/Using_ODBC_in_the_core#PostgreSQL_8.4_on_Debian_Squeeze
"We've experienced some major stability issues with the unixODBC-debian-package 2.2.14p2-1 from the repository. FreeSWITCH would die anywhere between a few days to weeks. Upgrading to a manually compiled unixODBC 2.3.0-pre fixed this problem and has been tested stable for the last 2 months. --Peletiah 13:04, 4 February 2012 (UTC)"
disable mon_ami autostart for now