diff --git a/src/sim/card_fs_isim.c b/src/sim/card_fs_isim.c
index 2970c45..f11c029 100644
--- a/src/sim/card_fs_isim.c
+++ b/src/sim/card_fs_isim.c
@@ -1,7 +1,7 @@
 /*! \file card_fs_isim.c
  * 3GPP ISIM specific structures / routines. */
 /*
- * (C) 2014 by Harald Welte <laforge@gnumonks.org>
+ * (C) 2014-2020 by Harald Welte <laforge@gnumonks.org>
  *
  * All Rights Reserved
  *
@@ -34,16 +34,19 @@
 #include "sim_int.h"
 #include "gsm_int.h"
 
-/* TS 31.103 Version 11.2.0 Release 11 / Chapoter 7.1.3 */
+/* TS 31.103 Version 15.5.0 Release 15 / Chapter 7.1.3 */
 const struct osim_card_sw ts31_103_sw[] = {
 	{
 		0x9862, 0xffff, SW_TYPE_STR, SW_CLS_ERROR,
 		.u.str = "Security management - Authentication error, incorrect MAC",
+	}, {
+		0x9864, 0xffff, SW_TYPE_STR, SW_CLS_ERROR,
+		.u.str = "Security management - Authentication error, security context not supported",
 	},
 	OSIM_CARD_SW_LAST
 };
 
-/* TS 31.103 Version 11.2.0 Release 11 / Chapoter 4.2 */
+/* TS 31.103 Version 15.5.0 Release 15 / Chapter 4.2 */
 static const struct osim_file_desc isim_ef_in_adf_isim[] = {
 	EF_TRANSP_N(0x6F02, 0x02, "EF.IMPI", 0, 1, 256,
 		"IMS private user identity"),
@@ -75,6 +78,14 @@
 		"Short message service parameters"),
 	EF_LIN_FIX_N(0x6FE7, SFI_NONE, "EF.UICCIARI", F_OPTIONAL, 1, 256,
 		"UICC IARI"),
+	EF_TRANSP_N(0x6FF7, SFI_NONE, "EF_FromPreferred", F_OPTIONAL, 1, 1,
+		"From Preferred"),
+	EF_TRANSP_N(0x6FF8, SFI_NONE, "EF_IMSConfigData", F_OPTIONAL, 3, 128,
+		"IMS Configuration Data"),
+	EF_TRANSP_N(0x6FFC, SFI_NONE, "EF_XCAPConfigData", F_OPTIONAL, 1, 128,
+		"XCAP Configuration Data"),
+	EF_LIN_FIX_N(0x6FFA, SFI_NONE, "EF_WebRTCURI", F_OPTIONAL, 3, 128,
+		"WebRTC URI"),
 };
 
 /* Annex E - TS 101 220 */