diff --git a/tests/Makefile.am b/tests/Makefile.am
index f54ce18..7d62615 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -354,7 +354,8 @@
              timer/timer_test.ok sms/sms_test.ok ussd/ussd_test.ok	\
              smscb/smscb_test.ok bits/bitrev_test.ok a5/a5_test.ok	\
              conv/conv_test.ok auth/milenage_test.ok ctrl/ctrl_test.ok	\
-             lapd/lapd_test.ok gsm0408/gsm0408_test.ok			\
+             lapd/lapd_test.ok						\
+             gsm0408/gsm0408_test.ok gsm0408/gsm0408_test.err		\
              gsm0808/gsm0808_test.ok gb/bssgp_fc_tests.err		\
              gb/bssgp_fc_tests.ok gb/bssgp_fc_tests.sh			\
              gb/gprs_bssgp_test.ok gb/gprs_ns_test.ok gea/gea_test.ok	\
@@ -496,7 +497,8 @@
 	gsm29205/gsm29205_test \
 		>$(srcdir)/gsm29205/gsm29205_test.ok
 	gsm0408/gsm0408_test \
-		>$(srcdir)/gsm0408/gsm0408_test.ok
+		2>$(srcdir)/gsm0408/gsm0408_test.err \
+		1>$(srcdir)/gsm0408/gsm0408_test.ok
 	gsm48/rest_octets_test \
 		>$(srcdir)/gsm48/rest_octets_test.ok
 	gprs/gprs_test \
diff --git a/tests/gsm0408/gsm0408_test.c b/tests/gsm0408/gsm0408_test.c
index 16bc8e8..7d2df47 100644
--- a/tests/gsm0408/gsm0408_test.c
+++ b/tests/gsm0408/gsm0408_test.c
@@ -65,6 +65,18 @@
 	},
 };
 
+static const uint8_t speech_no3a_lv[] = { 0x01, 0xa0 };
+
+static const struct gsm_mncc_bearer_cap bcap_speech_no3a = {
+	.transfer =	GSM48_BCAP_ITCAP_SPEECH,
+	.mode =		GSM48_BCAP_TMOD_CIRCUIT,
+	.coding =	GSM48_BCAP_CODING_GSM_STD,
+	.radio =	GSM48_BCAP_RRQ_FR_ONLY,
+	.speech_ver = {
+		0, -1,
+	},
+};
+
 
 struct bcap_test {
 	const uint8_t *lv;
@@ -75,6 +87,7 @@
 static const struct bcap_test bcap_tests[] = {
 	{ csd_9600_v110_lv, &bcap_csd_9600_v110, "CSD 9600/V.110/transparent" },
 	{ speech_all_lv, &bcap_speech_all, "Speech, all codecs" },
+	{ speech_no3a_lv, &bcap_speech_no3a, "Speech, without octet 3a" },
 };
 
 static int test_bearer_cap()
diff --git a/tests/gsm0408/gsm0408_test.err b/tests/gsm0408/gsm0408_test.err
new file mode 100644
index 0000000..1f0236c
--- /dev/null
+++ b/tests/gsm0408/gsm0408_test.err
@@ -0,0 +1,3 @@
+Incorrect decoded result of Speech, without octet 3a:
+ should: 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
+ is:     00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 00 00 00 00 ff ff ff ff 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 
diff --git a/tests/gsm0408/gsm0408_test.ok b/tests/gsm0408/gsm0408_test.ok
index 97bf083..17a7a0b 100644
--- a/tests/gsm0408/gsm0408_test.ok
+++ b/tests/gsm0408/gsm0408_test.ok
@@ -1,5 +1,6 @@
 Test `CSD 9600/V.110/transparent' passed
 Test `Speech, all codecs' passed
+Test `Speech, without octet 3a' failed
 Simple TMSI encoding test....passed
 Simple IMSI encoding test....passed: [10] 17 08 99 10 07 00 00 00 64 02 
 
diff --git a/tests/testsuite.at b/tests/testsuite.at
index ca133bb..44ae539 100644
--- a/tests/testsuite.at
+++ b/tests/testsuite.at
@@ -153,7 +153,8 @@
 AT_SETUP([gsm0408])
 AT_KEYWORDS([gsm0408])
 cat $abs_srcdir/gsm0408/gsm0408_test.ok > expout
-AT_CHECK([$abs_top_builddir/tests/gsm0408/gsm0408_test], [0], [expout], [ignore])
+cat $abs_srcdir/gsm0408/gsm0408_test.err > experr
+AT_CHECK([$abs_top_builddir/tests/gsm0408/gsm0408_test], [0], [expout], [experr])
 AT_CLEANUP
 
 AT_SETUP([gsm48_rest_octets])