[Users] using the acc module

Hello, I'm trying to configure the accounting module to log messages to syslog by following the instructions here: http://www.openser.org/docs/modules/1.1.x/acc.html I've included these lines where appropriate according to the example on that page. The meaningful parts of the code are as follows: loadmodule "/usr/local/lib64/openser/modules/acc.so" modparam("acc", "log_level", 1) modparam("acc", "log_flag", 1) route { if (method=="INVITE" || method=="BYE" || method=="CANCEL") { setflag(1); /* set for accounting (the same value as in log_flag!) } } However this is not causing any information to be logged to syslog. Any idea? Thanks in advance, Daniel