diff --git a/chan_capi.c b/chan_capi.c
index a40af98..604e1b0 100644
--- a/chan_capi.c
+++ b/chan_capi.c
@@ -1913,6 +1913,14 @@ static void handle_info_disconnect(_cmsg *CMSG, unsigned int PLCI, unsigned int
  */
 static void handle_setup_element(_cmsg *CMSG, unsigned int PLCI, struct ast_capi_pvt *i)
 {
+	if (i->isdnstate & CAPI_ISDN_STATE_SETUP) {
+		cc_ast_verbose(3, 1, VERBOSE_PREFIX_4 "%s: IE SETUP already received.\n",
+			i->name);
+		return;
+	}
+
+	i->isdnstate |= CAPI_ISDN_STATE_SETUP;
+
 	if (!i->owner) {
 		ast_log(LOG_ERROR, "No channel for interface!\n");
 		return;
diff --git a/chan_capi.h b/chan_capi.h
index 128f551..1414fb1 100644
--- a/chan_capi.h
+++ b/chan_capi.h
@@ -166,9 +166,10 @@ struct ast_capi_gains {
 	unsigned char rxgains[256];
 };
 
-#define CAPI_ISDN_STATE_SETUP_ACK     0x01
-#define CAPI_ISDN_STATE_HOLD          0x02
-#define CAPI_ISDN_STATE_ECT           0x04
+#define CAPI_ISDN_STATE_SETUP         0x01
+#define CAPI_ISDN_STATE_SETUP_ACK     0x02
+#define CAPI_ISDN_STATE_HOLD          0x04
+#define CAPI_ISDN_STATE_ECT           0x08
 
 /* ! Private data for a capi device */
 struct ast_capi_pvt {