diff --git a/sysinfo/GSM_SystemInformation.ttcn b/sysinfo/GSM_SystemInformation.ttcn
index 01565c1..552463f 100644
--- a/sysinfo/GSM_SystemInformation.ttcn
+++ b/sysinfo/GSM_SystemInformation.ttcn
@@ -6,20 +6,7 @@
 module GSM_SystemInformation {
 
 	import from General_Types all;
-
-	type integer uint32_t (0..4294967295) with { variant "unsigned 32 bit" };
-	type integer uint16_t (0..65535) with { variant "unsigned 16 bit" };
-	type integer uint2_t (0..3) with { variant "unsigned 2 bit" };
-	type integer uint3_t (0..7) with { variant "unsigned 3 bit" };
-	type integer uint4_t (0..15) with { variant "unsigned 4 bit" };
-	type integer uint5_t (0..31) with { variant "unsigned 5 bit" };
-	type integer uint6_t (0..63) with { variant "unsigned 6 bit" };
-	type integer uint7_t (0..127) with { variant "unsigned 7 bit" };
-	type integer uint8_t (0..255) with { variant "unsigned 8 bit" };
-	type integer uint9_t (0..511) with { variant "unsigned 9 bit" };
-	type integer uint10_t (0..1023) with { variant "unsigned 10 bit" };
-	type integer uint11_t (0..2047) with { variant "unsigned 11 bit" };
-	type integer uint12_t (0..4095) with { variant "unsigned 12 bit" };
+	import from Osmocom_Types all;
 
 	type record L2PseudoLength {
 		uint6_t		l2_plen,