diff --git a/libs/ysig/isup.cpp b/libs/ysig/isup.cpp
index 64723fc7..b8a81aa2 100644
--- a/libs/ysig/isup.cpp
+++ b/libs/ysig/isup.cpp
@@ -1299,10 +1299,12 @@ static const IsupParam s_paramDefs[] = {
     MAKE_PARAM(UserTeleserviceInformation,     0,0,             0,             0),                    // 3.59
     MAKE_PARAM(UserToUserIndicators,           0,0,             0,             0),                    // 3.60
     MAKE_PARAM(UserToUserInformation,          0,0,             0,             0),                    // 3.61
+    MAKE_PARAM(CCSScallIndication,             1,0,             0,             0),                    // 3.63
     MAKE_PARAM(ForwardGVNS,                    0,0,             0,             0),                    // 3.66
     MAKE_PARAM(BackwardGVNS,                   0,0,             0,             0),                    // 3.62
     MAKE_PARAM(RedirectCapability,             0,0,             0,             0),                    // 3.96
     MAKE_PARAM(RedirectCounter,                0,0,             0,             0),                    // 3.97
+    MAKE_PARAM(CCNRpossibleIndicator,          0,0,             0,             0),                    // 3.83
     MAKE_PARAM(PivotRoutingIndicators,         0,0,             0,             0),                    // 3.85
     MAKE_PARAM(CalledDirectoryNumber,          0,0,             0,             0),                    // 3.86
     MAKE_PARAM(OriginalCalledINNumber,         0,0,             0,             0),                    // 3.87
diff --git a/libs/ysig/yatesig.h b/libs/ysig/yatesig.h
index d0207701..5703e31f 100644
--- a/libs/ysig/yatesig.h
+++ b/libs/ysig/yatesig.h
@@ -7506,11 +7506,13 @@ public:
 	RedirectionNumberRestriction   = 0x40, // ITU only
 	FreephoneIndicators            = 0x41, // ITU only
 	GenericReference               = 0x42, // ITU only
+	CCSScallIndication             = 0x4b,
 	ForwardGVNS                    = 0x4c,
 	BackwardGVNS                   = 0x4d,
 	RedirectCapability             = 0x4e, // National use
 	RedirectCounter                = 0x77, // National use
 	ApplicationTransport           = 0x78,
+	CCNRpossibleIndicator          = 0x7a,
 	PivotRoutingIndicators         = 0x7c,
 	CalledDirectoryNumber          = 0x7d, // National use
 	OriginalCalledINNumber         = 0x7f,