diff --git a/openbsc/include/openbsc/gsm_data.h b/openbsc/include/openbsc/gsm_data.h
index 5829c8d..70c08c3 100644
--- a/openbsc/include/openbsc/gsm_data.h
+++ b/openbsc/include/openbsc/gsm_data.h
@@ -215,6 +215,9 @@
 	MSC_CTR_CALL_MO_CONNECT_ACK,
 	MSC_CTR_CALL_MT_SETUP,
 	MSC_CTR_CALL_MT_CONNECT,
+	MSC_CTR_CALL_ACTIVE,
+	MSC_CTR_CALL_COMPLETE,
+	MSC_CTR_CALL_INCOMPLETE,
 };
 
 static const struct rate_ctr_desc msc_ctr_description[] = {
@@ -235,6 +238,9 @@
 	[MSC_CTR_CALL_MO_CONNECT_ACK] = 		{"call.mo_connect_ack", "Received a connect ack from MS of a MO call. Call is now succesful connected up."},
 	[MSC_CTR_CALL_MT_SETUP] = 		{"call.mt_setup", "Sent setup requests to the MS (MT)."},
 	[MSC_CTR_CALL_MT_CONNECT] = 		{"call.mt_connect", "Sent a connect to the MS (MT)."},
+	[MSC_CTR_CALL_ACTIVE] =			{"call.active", "Count total amount of calls that ever reached active state."},
+	[MSC_CTR_CALL_COMPLETE] = 		{"call.complete", "Count total amount of calls which got terminated by disconnect req or ind after reaching active state."},
+	[MSC_CTR_CALL_INCOMPLETE] = 		{"call.incomplete", "Count total amount of call which got terminated by any other reason after reaching active state."},
 };
 
 
@@ -298,7 +304,7 @@
 
 	struct rate_ctr_group *bsc_ctrs;
 	struct rate_ctr_group *msc_ctrs;
-
+	struct osmo_counter *active_calls;
 
 	/* layer 4 */
 	struct mncc_sock_state *mncc_state;
diff --git a/openbsc/src/libbsc/net_init.c b/openbsc/src/libbsc/net_init.c
index e53b466..57e3599 100644
--- a/openbsc/src/libbsc/net_init.c
+++ b/openbsc/src/libbsc/net_init.c
@@ -86,6 +86,7 @@
 	/* init statistics */
 	net->bsc_ctrs = rate_ctr_group_alloc(net, &bsc_ctrg_desc, 0);
 	net->msc_ctrs = rate_ctr_group_alloc(net, &msc_ctrg_desc, 0);
+	net->active_calls = osmo_counter_alloc("msc.active_calls");
 
 	net->mncc_recv = mncc_recv;
 	net->ext_min = GSM_MIN_EXTEN;
diff --git a/openbsc/src/libmsc/gsm_04_08.c b/openbsc/src/libmsc/gsm_04_08.c
index aa3d78a9..be1b260 100644
--- a/openbsc/src/libmsc/gsm_04_08.c
+++ b/openbsc/src/libmsc/gsm_04_08.c
@@ -1299,6 +1299,39 @@
 	return gsm48_conn_sendmsg(msg, conn, NULL);
 }
 
+/* FIXME: this count_statistics is a state machine behaviour. we should convert
+ * the complete call control into a state machine. Afterwards we can move this
+ * code into state transitions.
+ */
+static void count_statistics(struct gsm_trans *trans, int new_state)
+{
+	int old_state = trans->cc.state;
+	struct rate_ctr_group *msc = trans->net->msc_ctrs;
+
+	if (old_state == new_state)
+		return;
+
+	/* state incoming */
+	switch (new_state) {
+	case GSM_CSTATE_ACTIVE:
+		osmo_counter_inc(trans->net->active_calls);
+		rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_ACTIVE]);
+		break;
+	}
+
+	/* state outgoing */
+	switch (old_state) {
+	case GSM_CSTATE_ACTIVE:
+		osmo_counter_dec(trans->net->active_calls);
+		if (new_state == GSM_CSTATE_DISCONNECT_REQ ||
+				new_state == GSM_CSTATE_DISCONNECT_IND)
+			rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_COMPLETE]);
+		else
+			rate_ctr_inc(&msc->ctr[MSC_CTR_CALL_INCOMPLETE]);
+		break;
+	}
+}
+
 /* Call Control */
 
 /* The entire call control code is written in accordance with Figure 7.10c
@@ -1315,6 +1348,7 @@
 		gsm48_cc_state_name(trans->cc.state),
 		gsm48_cc_state_name(state));
 
+	count_statistics(trans, state);
 	trans->cc.state = state;
 }