diff --git a/doc/bsc_tests_aoip.dot b/doc/bsc_tests_aoip.dot
new file mode 100644
index 0000000..4128d5c
--- /dev/null
+++ b/doc/bsc_tests_aoip.dot
@@ -0,0 +1,81 @@
+digraph G {
+	rankdir = LR;
+	label = "MSC_Tests component hierarchy";
+
+	"MSC_ConnHdlr" [
+		shape = "record"
+		label = "<f0> MSC_ConnHdlr | <BSSAP> BSSAP | <BSSAP_PROC> BSSAP_PROC | <RSL> RSL | <RSL_PROC> RSL_PROC | <MGCP> MGCP | <MGCP_PROC> MGCP_PROC | <MGCP_MULTI> MGCP_MULTI | <BSSAP_LE> BSSAP_LE | <BSSAP_LE_PROC> BSSAP_LE_PROC | <STATSD_PROC> STATSD_PROC | <RAN> RAN | <BSCVTY> BSCVTY | <COORD> COORD | <MGCP_MSC_CLIENT> MGCP_MSC_CLIENT"
+	];
+
+	"RAN_Emulation_CT" [
+		shape = "record"
+		label = "<f0> RAN_Emulation_CT | <BSSAP> BSSAP | <RANAP> RANAP | <MGCP> MGCP | <CTRL> CTRL | <CTRL_CLIENT> CTRL_CLIENT | <CLIENT> CLIENT | <PROC> PROC"
+	];
+	"RAN_Emulation_CT":BSSAP -> "SCCP_CT":SCCP_SP_PORT
+	"MSC_ConnHdlr":BSSAP -> "RAN_Emulation_CT":CLIENT
+	"MSC_ConnHdlr":BSSAP_PROC -> "RAN_Emulation_CT":PROC
+	"MSC_ConnHdlr":IPA_CTRL -> "IPA_Emulation_CT":IPA_CTRL_PORT
+
+	"RSL_Emulation_CT" [
+		shape = "record"
+		label = "<f0> RSL_Emulation_CT | <CLIENT_PT> CLIENT_PT | <RSL_PROC> RSL_PROC | <CCHAN_PT> CCHAN_PT | <IPA_PT> IPA_PT"
+	]
+	"RSL_Emulation_CT":IPA_PT -> "IPA_Emulation_CT":IPA_RSL_PORT
+	"MSC_ConnHdlr":RSL -> "RSL_Emulation_CT":CLIENT_PT
+	"MSC_ConnHdlr":RSL_PROC -> "RSL_Emulation_CT":RSL_PROC
+
+	"BSSAP_LE_Emulation_CT" [
+		shape = "record"
+		label = "<f0> BSSAP_LE_Emulation_CT | <CLIENT> CLIENT | <PROC> PROC | <BSSAP_LE> BSSAP_LE"
+	]
+	"BSSAP_LE_Emulation_CT":BSSAP_LE -> "SCCP_CT":SCCP_SP_PORT
+	"MSC_ConnHdlr":BSSAP_LE -> "BSSAP_LE_Emulation_CT":CLIENT
+	"MSC_ConnHdlr":BSSAP_LE_PROC -> "BSSAP_LE_Emulation_CT":PROC
+
+	"SCCP_CT" [
+		shape = "record"
+		label = "<f0> SCCP_CT | <MTP3_SCCP_PORT> MTP3_SCCP_PORT | <SCCP_SP_PORT> SCCP_SP_PORT"
+	];
+	"SCCP_CT":MTP3_SCCP_PORT -> "M3UA_CT":MTP3_SP_PORT
+
+	"M3UA_CT" [
+
+		shape = "record"
+		label = "<f0> M3UA_CT | <STCP_PORT> SCTP_PORT | <MTP3_SP_PORT> MTP3_SP_PORT"
+	];
+	"M3UA_CT":SCTP_PORT -> "system":SCTP
+
+
+	"StatsD_Checker_CT" [
+		shape = "record"
+		label = "<f0> StatsD_Checker_CT | <STATSD_PROC> STATSD_PROC | <STATS> STATS | <STATSVTY> STATSVTY"
+	]
+	"StatsD_Checker_CT":STATS -> "system":IPL4
+	"StatsD_Checker_CT":STATSVTY -> "system":TELNET
+	"MSC_ConnHdlr":STATSD_PROC -> "StatsD_Checker_CT":STATSD_PROC
+
+
+	"MGCP_Emulation_CT" [
+		shape = "record"
+		label = "<f0> MGCP_Emulation_CT | <MGCP_CLIENT> MGCP_CLIENT | <MGCP_PROC> MGCP_PROC | <MGCP_CLIENT_MULTI> MGCP_CLIENT_MULTI | <MGCP> MGCP"
+	]
+	"MGCP_Emulation_CT":MGCP -> "system":IPL4
+	"MGCP_Emulation_CT":MGCP -> "IPA_Emulation_CT":IPA_MGCP_PORT
+	"MSC_ConnHdlr":MGCP -> "MGCP_Emulation_CT":MGCP_CLIENT
+	"MSC_ConnHdlr":MGCP_PROC -> "MGCP_Emulation_CT":MGCP_PROC
+	"MSC_ConnHdlr":MGCP_MULTI -> "MGCP_Emulation_CT":MGCP_CLIENT_MULTI
+	"MSC_ConnHdlr":BSCVTY -> "system":TELNET
+
+
+	"IPA_Emulation_CT" [
+		shape = "record"
+		label = "<f0> IPA_Emulation_CT | <MTP3_SP_PORT> MTP3_SP_PORT | <IPA_MGCP_PORT> IPA_MGCP_PORT | <IPA_RSL_PORT> IPA_RSL_PORT | <IPA_OML_PORT> IPA_OML_PORT | <IPA_CTRL_PORT> IPA_CTRL_PORT | <IPA_GSUP_PORT> IPA_GSUP_PORT | <IPA_RSPRO_PORT> IPA_RSPRO_PORT | <IPA_OSMO_PCU_PORT> IPA_OSMO_PCU_PORT | <IPA_SP_PORT> IPA_SP_PORT | <IPA_PORT> IPA_PORT"
+	];
+	"IPA_Emulation_CT":IPA_PORT -> "system":IPL4
+
+
+	"system" [
+		shape = "record"
+		label = "<f0> system | <SCTP> SCTP | <IPL4> IPL4 | <UD> UD | <TELNET> TELNET"
+	];
+}