diff --git a/tests/mgcp/mgcp_test.c b/tests/mgcp/mgcp_test.c
index c4931b2..ab6d0ce 100644
--- a/tests/mgcp/mgcp_test.c
+++ b/tests/mgcp/mgcp_test.c
@@ -208,8 +208,24 @@
 	"a=rtpmap:99 AMR/8000\r\n" \
 	"a=ptime:40\r\n"
 
-#define MDCX4_SO \
+/* Test different upper/lower case in options */
+#define MDCX4_PT4 \
 	"MDCX 18983220 1@mgw MGCP 1.0\r\n" \
+	"M: sendrecv\r" \
+	"C: 2\r\n" \
+	"I: %s\r\n" \
+	"L: A:AMR, NT:IN\r\n" \
+	"\n" \
+	"v=0\r\n" \
+	"o=- %s 23 IN IP4 0.0.0.0\r\n" \
+	"c=IN IP4 0.0.0.0\r\n" \
+	"t=0 0\r\n" \
+	"m=audio 4441 RTP/AVP 99\r\n" \
+	"a=rtpmap:99 AMR/8000\r\n" \
+	"a=ptime:40\r\n"
+
+#define MDCX4_SO \
+	"MDCX 18983221 1@mgw MGCP 1.0\r\n" \
 	"M: sendonly\r" \
 	"C: 2\r\n" \
 	"I: %s\r\n" \
@@ -224,17 +240,17 @@
 	"a=ptime:40\r\n"
 
 #define MDCX4_RO \
-	"MDCX 18983221 1@mgw MGCP 1.0\r\n" \
+	"MDCX 18983222 1@mgw MGCP 1.0\r\n" \
 	"M: recvonly\r" \
 	"C: 2\r\n" \
 	"I: %s\r\n" \
 	"L: p:20, a:AMR, nt:IN\r\n"
 
 #define MDCX_TOO_LONG_CI \
-	"MDCX 18983222 1@mgw MGCP 1.0\r\n" \
+	"MDCX 18983223 1@mgw MGCP 1.0\r\n" \
 	"I: 123456789012345678901234567890123\n"
 
-#define MDCX_TOO_LONG_CI_RET "510 18983222 FAIL\r\n"
+#define MDCX_TOO_LONG_CI_RET "510 18983223 FAIL\r\n"
 
 #define SHORT2	"CRCX 1"
 #define SHORT2_RET "510 000000 FAIL\r\n"
@@ -526,8 +542,9 @@
 	{"MDCX4_PT1", MDCX4_PT1, MDCX4_RET("18983217"), 99},
 	{"MDCX4_PT2", MDCX4_PT2, MDCX4_RET("18983218"), 99},
 	{"MDCX4_PT3", MDCX4_PT3, MDCX4_RET("18983219"), 99},
-	{"MDCX4_SO", MDCX4_SO, MDCX4_RET("18983220"), 99},
-	{"MDCX4_RO", MDCX4_RO, MDCX4_RO_RET("18983221"), PTYPE_IGNORE},
+	{"MDCX4_PT4", MDCX4_PT4, MDCX4_RET("18983220"), 99},
+	{"MDCX4_SO", MDCX4_SO, MDCX4_RET("18983221"), 99},
+	{"MDCX4_RO", MDCX4_RO, MDCX4_RO_RET("18983222"), PTYPE_IGNORE},
 	{"DLCX", DLCX, DLCX_RET, PTYPE_IGNORE},
 	{"CRCX_ZYN", CRCX_ZYN, CRCX_ZYN_RET, 97},
 	{"EMPTY", EMPTY, EMPTY_RET},
diff --git a/tests/mgcp/mgcp_test.ok b/tests/mgcp/mgcp_test.ok
index d21eaa1..3929d79 100644
--- a/tests/mgcp/mgcp_test.ok
+++ b/tests/mgcp/mgcp_test.ok
Binary files differ