diff --git a/doc/stk-api.txt b/doc/stk-api.txt
index b9ca5929..79daee6a 100644
--- a/doc/stk-api.txt
+++ b/doc/stk-api.txt
@@ -116,6 +116,7 @@ Methods		byte RequestSelection(string title, byte icon_id,
 			cleared prior to the display of this text.
 
 			Possible Errors: [service].Error.SimToolkit.GoBack
+					 [service].Error.SimToolkit.Busy
 
 			Implementation notes:
 
diff --git a/src/stk.c b/src/stk.c
index a4abb7d3..7b39f7e1 100644
--- a/src/stk.c
+++ b/src/stk.c
@@ -1203,6 +1203,9 @@ static void display_text_cb(enum stk_agent_result result, void *user_data)
 {
 	struct ofono_stk *stk = user_data;
 	gboolean confirm;
+	struct stk_response rsp;
+	static unsigned char screen_busy_result[] = { 0x01 };
+	static struct ofono_error error = { .type = OFONO_ERROR_TYPE_FAILURE };
 
 	stk->respond_on_exit = FALSE;
 
@@ -1250,6 +1253,15 @@ static void display_text_cb(enum stk_agent_result result, void *user_data)
 			STK_RESULT_TYPE_NO_RESPONSE : STK_RESULT_TYPE_SUCCESS);
 		break;
 
+	case STK_AGENT_RESULT_BUSY:
+		memset(&rsp, 0, sizeof(rsp));
+		rsp.result.type = STK_RESULT_TYPE_TERMINAL_BUSY;
+		rsp.result.additional_len = sizeof(screen_busy_result);
+		rsp.result.additional = screen_busy_result;
+		if (stk_respond(stk, &rsp, stk_command_cb))
+			stk_command_cb(&error, stk);
+		break;
+
 	case STK_AGENT_RESULT_TERMINATE:
 	default:
 		send_simple_response(stk, STK_RESULT_TYPE_USER_TERMINATED);
@@ -1366,6 +1378,7 @@ static void request_confirmation_cb(enum stk_agent_result result,
 		break;
 
 	case STK_AGENT_RESULT_TERMINATE:
+	default:
 		send_simple_response(stk, STK_RESULT_TYPE_USER_TERMINATED);
 		break;
 	}
@@ -1408,6 +1421,7 @@ static void request_key_cb(enum stk_agent_result result, char *string,
 		break;
 
 	case STK_AGENT_RESULT_TERMINATE:
+	default:
 		send_simple_response(stk, STK_RESULT_TYPE_USER_TERMINATED);
 		break;
 	}
@@ -1505,6 +1519,7 @@ static void request_string_cb(enum stk_agent_result result, char *string,
 		break;
 
 	case STK_AGENT_RESULT_TERMINATE:
+	default:
 		send_simple_response(stk, STK_RESULT_TYPE_USER_TERMINATED);
 		break;
 	}
diff --git a/src/stkagent.c b/src/stkagent.c
index 83150400..e1a6f483 100644
--- a/src/stkagent.c
+++ b/src/stkagent.c
@@ -41,6 +41,7 @@
 enum allowed_error {
 	ALLOWED_ERROR_GO_BACK	= 0x1,
 	ALLOWED_ERROR_TERMINATE	= 0x2,
+	ALLOWED_ERROR_BUSY		= 0x4,
 };
 
 struct stk_agent {
@@ -62,6 +63,7 @@ struct stk_agent {
 #define ERROR_PREFIX OFONO_SERVICE ".Error"
 #define GOBACK_ERROR ERROR_PREFIX ".GoBack"
 #define TERMINATE_ERROR ERROR_PREFIX ".EndSession"
+#define BUSY_ERROR ERROR_PREFIX ".Busy"
 
 static void stk_agent_send_noreply(struct stk_agent *agent, const char *method)
 {
@@ -194,6 +196,12 @@ static int check_error(struct stk_agent *agent, DBusMessage *reply,
 		goto out;
 	}
 
+	if ((allowed_errors & ALLOWED_ERROR_BUSY) &&
+			g_str_equal(err.name, BUSY_ERROR)) {
+		*out_result = STK_AGENT_RESULT_BUSY;
+		goto out;
+	}
+
 	result = -EINVAL;
 
 out:
@@ -376,8 +384,8 @@ static void display_text_cb(DBusPendingCall *call, void *data)
 	gboolean remove_agent;
 
 	if (check_error(agent, reply,
-			ALLOWED_ERROR_GO_BACK | ALLOWED_ERROR_TERMINATE,
-			&result) == -EINVAL) {
+			ALLOWED_ERROR_GO_BACK | ALLOWED_ERROR_TERMINATE |
+			ALLOWED_ERROR_BUSY, &result) == -EINVAL) {
 		remove_agent = TRUE;
 		goto error;
 	}
diff --git a/src/stkagent.h b/src/stkagent.h
index c8e1886a..517bcfe0 100644
--- a/src/stkagent.h
+++ b/src/stkagent.h
@@ -26,6 +26,7 @@ enum stk_agent_result {
 	STK_AGENT_RESULT_BACK,
 	STK_AGENT_RESULT_TERMINATE,
 	STK_AGENT_RESULT_TIMEOUT,
+	STK_AGENT_RESULT_BUSY,
 };
 
 struct stk_menu_item {