Hi, Try next snippet: #!define FLT_SIPTRACE 22 ... #!define WITH_SIPTRACE #!define WITH_AVPOPS #!define WITH_MYSQL .... #!ifdef WITH_AVPOPS loadmodule "avpops.so" #!endif #!ifdef WITH_SIPTRACE loadmodule "siptrace.so" #!endif ... #!ifdef WITH_SIPTRACE # --- sip trace settings --- modparam("siptrace","db_url", DBURL); modparam("siptrace","trace_flag", FLT_SIPTRACE); modparam("siptrace","traced_user_avp","$avp(s:traceuser)"); #!endif #!ifdef WITH_AVPOPS #!ifdef WITH_MYSQL modparam("avpops", "db_url", DBURL); modparam("avpops","avp_table","usr_preferences"); #!endif #!endif ... route { ... #!ifdef WITH_SIPTRACE #!ifdef WITH_AVPOPS #!ifdef WITH_MYSQL if (avp_db_load("$fu","$avp(s:trace)")) { $avp(s:traceuser) = $avp(s:trace); setflag(FLT_SIPTRACE); sip_trace(); xlog("L_INFO"," User $fu being traced ci=$ci\n"); } #!endif #!endif #!endif } you will be able to trace single user if add trace option into user preferences: kamctl avp add -T usr_preferences user(a)domain.tld trace 0 1 -- Seudin On Tue, Apr 9, 2013 at 8:08 PM, Ramaseshi reddy kolli < ramaseshireddy(a)gmail.com&gt; wrote: -- MSC Seudin Kasumovic Tuzla, Bosnia