[Freeswitch-users] CDR Behaviour (b_only)

Hi, I'm curious how others handle CDRs from FreeSWITCH. I need them to end up in a MySQL database and the easiest way I've found of achieving this is to use the mod_xml_cdr module to call a PHP script that inserts the row. Is there a preferred way of achieving this? Also, I only need ONE cdr entry per call, for billing purposes, so what I end up doing is having process_cdr as "b_only" which works great for successful calls. However, a call that is not successfully bridged results in two HTTP POST calls to my script one with is_outbound = true (as I'd expect for the b leg) but also what appears to be the a leg of the CDR (despite requesting b_only) Is this the intended behaviour of "b_only" Regards, Ross