diff --git a/drivers/atmodem/sim.c b/drivers/atmodem/sim.c
index 29f57d97..35ed6656 100644
--- a/drivers/atmodem/sim.c
+++ b/drivers/atmodem/sim.c
@@ -1304,36 +1304,6 @@ static void at_xsim_notify(GAtResult *result, gpointer user_data)
 	sd->ready_id = 0;
 }
 
-static void at_qss_notify(GAtResult *result, gpointer user_data)
-{
-	struct cb_data *cbd = user_data;
-	struct sim_data *sd = cbd->user;
-	ofono_sim_lock_unlock_cb_t cb = cbd->cb;
-	struct ofono_error error = { .type = OFONO_ERROR_TYPE_NO_ERROR };
-	GAtResultIter iter;
-	int state;
-
-	g_at_result_iter_init(&iter, result);
-
-	if (!g_at_result_iter_next(&iter, "#QSS:"))
-		return;
-
-	if (!g_at_result_iter_next_number(&iter, &state))
-		return;
-
-	switch (state) {
-	case 3:	/* SIM inserted and READY. */
-		break;
-	default:
-		return;
-	}
-
-	cb(&error, cbd->data);
-
-	g_at_chat_unregister(sd->chat, sd->ready_id);
-	sd->ready_id = 0;
-}
-
 static void sim_state_cb(gboolean present, gpointer user_data)
 {
 	struct cb_data *cbd = user_data;
@@ -1374,16 +1344,6 @@ static void at_pin_send_cb(gboolean ok, GAtResult *result,
 							at_xsim_notify,
 							FALSE, cbd, g_free);
 		return;
-	case OFONO_VENDOR_TELIT:
-		/*
-		 * On the Telit modem, AT+CPIN? can return READY too
-		 * early and so use #QSS notification to detect
-		 * the ready state of the SIM.
-		 */
-		sd->ready_id = g_at_chat_register(sd->chat, "#QSS",
-							at_qss_notify,
-							FALSE, cbd, g_free);
-		return;
 	case OFONO_VENDOR_ZTE:
 	case OFONO_VENDOR_ALCATEL:
 	case OFONO_VENDOR_HUAWEI: