diff --git a/asn1/MAP-OperationAndMaintenanceOperations.asn b/asn1/MAP-OperationAndMaintenanceOperations.asn
new file mode 100644
index 0000000..adc50bd
--- /dev/null
+++ b/asn1/MAP-OperationAndMaintenanceOperations.asn
@@ -0,0 +1,91 @@
+MAP-OperationAndMaintenanceOperations {
+   itu-t identified-organization (4) etsi (0) mobileDomain (0)
+   gsm-Network (1) modules (3) map-OperationAndMaintenanceOperations (6)
+   version9 (9)}
+
+DEFINITIONS
+
+::=
+
+BEGIN
+
+EXPORTS
+	activateTraceMode,
+	deactivateTraceMode,
+	sendIMSI
+;
+
+IMPORTS
+	OPERATION
+FROM Remote-Operations-Information-Objects {
+joint-iso-itu-t remote-operations(4)
+  informationObjects(5) version1(0)}
+
+	systemFailure,
+	dataMissing,
+	unexpectedDataValue,
+	facilityNotSupported,
+	unknownSubscriber,
+	unidentifiedSubscriber,
+	tracingBufferFull
+FROM MAP-Errors {
+   itu-t identified-organization (4) etsi (0) mobileDomain (0)
+   gsm-Network (1) modules (3) map-Errors (10) version9 (9)}
+
+	ActivateTraceModeArg,
+	ActivateTraceModeRes,
+	DeactivateTraceModeArg,
+	DeactivateTraceModeRes
+FROM MAP-OM-DataTypes {
+   itu-t identified-organization (4) etsi (0) mobileDomain (0)
+   gsm-Network (1) modules (3) map-OM-DataTypes (12) version9 (9)}
+
+	ISDN-AddressString,
+	IMSI
+FROM MAP-CommonDataTypes {
+   itu-t identified-organization (4) etsi (0) mobileDomain (0)
+   gsm-Network (1) modules (3) map-CommonDataTypes (18) version9 (9)}
+;
+
+
+activateTraceMode  OPERATION ::= {				--Timer m
+	ARGUMENT
+		ActivateTraceModeArg
+	RESULT
+		ActivateTraceModeRes
+		-- optional
+	ERRORS {
+		systemFailure |
+		dataMissing |
+		unexpectedDataValue |
+		facilityNotSupported |
+		unidentifiedSubscriber |
+		tracingBufferFull}
+	CODE	local:50 }
+
+deactivateTraceMode  OPERATION ::= {				--Timer m
+	ARGUMENT
+		DeactivateTraceModeArg
+	RESULT
+		DeactivateTraceModeRes
+		-- optional
+	ERRORS {
+		systemFailure |
+		dataMissing |
+		unexpectedDataValue |
+		facilityNotSupported |
+		unidentifiedSubscriber}
+	CODE	local:51 }
+
+sendIMSI  OPERATION ::= {				--Timer m
+	ARGUMENT
+		ISDN-AddressString
+	RESULT
+		IMSI
+	ERRORS {
+		dataMissing |
+		unexpectedDataValue |
+		unknownSubscriber}
+	CODE	local:58 }
+
+END