Log missed calls fix

Added flag to log also missed calls

etc/sip-router-oob.cfg

@@ -358,7 +358,8 @@ flags
   FLAG_RTP_PROXY      : 13, # the RTP proxy is turned on
   FLAG_NAT_REG        : 14, # the UAC behind NAT, stored in location record
   FLAG_INIT_DLG       : 15, # init INVITE dialog
-  FLAG_REVERSE_DIR    : 16; # set if request goes callee -> caller direction, requires rr.append_fromtag=1
+  FLAG_REVERSE_DIR    : 16, # set if request goes callee -> caller direction, requires rr.append_fromtag=1
+  FLAG_ACC_MISSED     : 17; # the missed call will be recorded by ACC
 
 avpflags
   dialog_cookie;            # attribute will be stored in Route headers
@@ -500,6 +501,8 @@ modparam("acc_db", "failed_transactions", 1)
 # If you don't want to have accounting entries written into the database,
 # comment the next line out.
 modparam("acc_db", "log_flag", "FLAG_ACC")
+# seems "log_flag" and "log_flag_missed" cannot share the same flag!
+modparam("acc_db", "log_missed_flag", "FLAG_ACC_MISSED")
 
 # if you would like to customize your CDRs, do it here....
 #modparam("acc_db", "attrs",
@@ -724,24 +727,26 @@ route[INIT]
 	# Check if the UAC is NATed and fix the message accordingly
 	route(UAC_NAT_DETECTION);
 
-	# if needed then we MUST put after force_rport() which is located in NAT_DETECTION!!!
-	# Check t_reply() vs. sl_reply() usage in script
-	#if (!t_newtran()) {
-	#	sl_reply("500", "Internal tm error");
-	#	drop;
-	#}
-														
 	# Activate accounting for all initial INVITEs. In-dialog requests
 	# are accounted by a RR cookie (see below).
 	# It should work also when the call has been already forked at a previous router
 	if (method == "INVITE" && !isflagset(FLAG_TOTAG)) {
 		$dialog_id = @sys.unique; # make unique dialogid
 		setflag(FLAG_ACC);
+		setflag(FLAG_ACC_MISSED);
 		setflag(FLAG_INIT_DLG);
 	} else if (isflagset(FLAG_TOTAG) && @hf_value.route[0].params.ftag != @from.tag) {
 		setflag(FLAG_REVERSE_DIR);  # callee -> caller
 	}
 
+	# if needed then we MUST put after force_rport() which is located in NAT_DETECTION!!!
+	# also must be called after FLAG_ACC is set !!!
+	# Check t_reply() vs. sl_reply() usage in script
+	#if (!t_newtran()) {
+	#	sl_reply("500", "Internal tm error");
+	#	drop;
+	#}
+														
 	# Set flag and use it instead of the attribute.
 	if ($replicate==1) {
 		setflag(FLAG_REPL_ENABLED);
@@ -946,6 +951,7 @@ route[PROCESS_ROUTES]
 		# for this.
 		if ($account == "yes") {
 			setflag(FLAG_ACC);
+			setflag(FLAG_ACC_MISSED);
 		}
 
 		# Restore the RTP proxy flag if present