diff --git a/src/host/layer23/src/mobile/tch.c b/src/host/layer23/src/mobile/tch.c
index 70c9163ca..d5dda2ed6 100644
--- a/src/host/layer23/src/mobile/tch.c
+++ b/src/host/layer23/src/mobile/tch.c
@@ -181,7 +181,9 @@ static void tch_trans_free_cb(struct gsm_trans *trans)
 static void tch_trans_state_chg_cb(struct gsm_trans *trans)
 {
 	switch (trans->cc.state) {
-	case GSM_CSTATE_ACTIVE:
+	case GSM_CSTATE_CALL_DELIVERED: /* MO call: Rx CC ALERTING */
+	case GSM_CSTATE_CALL_RECEIVED: /* MT call: Tx CC ALERTING */
+	case GSM_CSTATE_ACTIVE: /* MO/MT call: Rx CC CONNECT */
 		tch_trans_cstate_active_cb(trans);
 		break;
 	case GSM_CSTATE_NULL: