Hi there.
I've noticed that no matter what i do with my test phone (call voicemail, call another extension etc) I get error messages like the following in my log file:

Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=553 a=26 n=xlog
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=560 a=16 n=if
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=557 a=25 n=is_method
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=563 a=16 n=if
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=560 a=25 n=is_method
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=567 a=16 n=if
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=563 a=25 n=is_method
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=570 a=16 n=if
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19400]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=567 a=24 n=t_relay
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19397]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=1064 a=25 n=xdbg
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19397]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=1067 a=16 n=if
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19397]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=1071 a=5 n=route
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19397]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=854 a=2 n=return
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19397]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=1088 a=16 n=if
Apr  2 14:31:07 jl-raspberrypi /usr/sbin/kamailio[19397]: ERROR: *** cfgtrace: c=[/etc/kamailio/kamailio.cfg] l=1073 a=24


It doesn't seem to impact the operation of the phone / dialplans etc.  I recall reading somewhere that it might have to do with caller ids or location.  I'm trying to google to see if I can find the article the made references to similar error messages.  But in the meantime, I thought I'd check the list to see if you could point me in the right direction.