diff --git a/src/ranap_common.c b/src/ranap_common.c
index 8879880..45ab225 100644
--- a/src/ranap_common.c
+++ b/src/ranap_common.c
@@ -27,6 +27,207 @@
 
 extern int asn1_xer_print;
 
+static const struct value_string ranap_cause_radio_vals[] = {
+	{ RANAP_CauseRadioNetwork_rab_pre_empted,	"RAB pre-empted" },
+	{ RANAP_CauseRadioNetwork_trelocoverall_expiry,	"Treloc_overall expiry" },
+	{ RANAP_CauseRadioNetwork_trelocprep_expiry,	"Treloc_prep expiry" },
+	{ RANAP_CauseRadioNetwork_treloccomplete_expiry,"Treloc_complete expiry" },
+	{ RANAP_CauseRadioNetwork_tqueing_expiry,	"Tqueueing expiry" },
+	{ RANAP_CauseRadioNetwork_relocation_triggered,	"Relocation triggered" },
+	{ RANAP_CauseRadioNetwork_trellocalloc_expiry,	"Treloc_alloc expiry" },
+	{ RANAP_CauseRadioNetwork_unable_to_establish_during_relocation,
+		"unable to establish during relocation" },
+	{ RANAP_CauseRadioNetwork_unknown_target_rnc,
+		"unknown target RNC" },
+	{ RANAP_CauseRadioNetwork_relocation_cancelled,	"Relocation cancelled" },
+	{ RANAP_CauseRadioNetwork_successful_relocation, "Successful relocation" },
+	{ RANAP_CauseRadioNetwork_requested_ciphering_and_or_integrity_protection_algorithms_not_supported,
+		"requested ciph. and/or int. prot. algorithms not supported" },
+	{ RANAP_CauseRadioNetwork_conflict_with_already_existing_integrity_protection_and_or_ciphering_information,
+		"conflict with existing int. prot. and/or ciph. information" },
+	{ RANAP_CauseRadioNetwork_failure_in_the_radio_interface_procedure,
+		"failure in the radio interface procedure" },
+	{ RANAP_CauseRadioNetwork_release_due_to_utran_generated_reason,
+		"release due to UTRAN generated reason" },
+	{ RANAP_CauseRadioNetwork_user_inactivity, 	"user inactivity" },
+	{ RANAP_CauseRadioNetwork_time_critical_relocation,
+		"time critical relocation" },
+	{ RANAP_CauseRadioNetwork_requested_traffic_class_not_available,
+		"requested traffic class not available" },
+	{ RANAP_CauseRadioNetwork_invalid_rab_parameters_value,
+		"invalid RAB parameters value" },
+	{ RANAP_CauseRadioNetwork_requested_maximum_bit_rate_not_available,
+		"requested max. bit-rate not available" },
+	{ RANAP_CauseRadioNetwork_requested_guaranteed_bit_rate_not_available,
+		"requested guaranteed bit-rate not available" },
+	{ RANAP_CauseRadioNetwork_requested_transfer_delay_not_achievable,
+		"requested transfer delay not achievable" },
+	{ RANAP_CauseRadioNetwork_invalid_rab_parameters_combination,
+		"invalid RAB parameters combination" },
+	{ RANAP_CauseRadioNetwork_condition_violation_for_sdu_parameters,
+		"condition violation for SDU parameters" },
+	{ RANAP_CauseRadioNetwork_condition_violation_for_traffic_handling_priority,
+		"condition violation for traffic handling priority" },
+	{ RANAP_CauseRadioNetwork_condition_violation_for_guaranteed_bit_rate,
+		"condition violation for guaranteed bit-rate" },
+	{ RANAP_CauseRadioNetwork_user_plane_versions_not_supported,
+		"user-plane versions not supported" },
+	{ RANAP_CauseRadioNetwork_iu_up_failure,	"Iu-UP failure" },
+	{ RANAP_CauseRadioNetwork_relocation_failure_in_target_CN_RNC_or_target_system,
+		"relocation failure in target CN/RNC or target system" },
+	{ RANAP_CauseRadioNetwork_invalid_RAB_ID,	"Invalid RAB ID" },
+	{ RANAP_CauseRadioNetwork_no_remaining_rab,	"No remaining RAB" },
+	{ RANAP_CauseRadioNetwork_interaction_with_other_procedure,
+		"interaction with other procedure" },
+	{ RANAP_CauseRadioNetwork_requested_maximum_bit_rate_for_dl_not_available,
+		"requested maximum bit-rate for DL not available" },
+	{ RANAP_CauseRadioNetwork_requested_maximum_bit_rate_for_ul_not_available,
+		"requested maximum bit-rate for UL not available" },
+	{ RANAP_CauseRadioNetwork_requested_guaranteed_bit_rate_for_dl_not_available,
+		"requested guaranteed bit-rate for DL not available" },
+	{ RANAP_CauseRadioNetwork_requested_guaranteed_bit_rate_for_ul_not_available,
+		"requested guaranteed bit-rate for UL not available" },
+	{ RANAP_CauseRadioNetwork_repeated_integrity_checking_failure,
+		"repeated integrity checking failure" },
+	{ RANAP_CauseRadioNetwork_requested_request_type_not_supported,
+		"requested request type not supported" },
+	{ RANAP_CauseRadioNetwork_request_superseded,	"request superseded" },
+	{ RANAP_CauseRadioNetwork_release_due_to_UE_generated_signalling_connection_release,
+		"release due to UE-generated signalling connection release" },
+	{ RANAP_CauseRadioNetwork_resource_optimisation_relocation,
+		"resource optimisation relocation" },
+	{ RANAP_CauseRadioNetwork_requested_information_not_available,
+		"requested information not available" },
+	{ RANAP_CauseRadioNetwork_relocation_desirable_for_radio_reasons,
+		"relocation desirable for radio reasons" },
+	{ RANAP_CauseRadioNetwork_relocation_not_supported_in_target_RNC_or_target_system,
+		"relocation not supported in target RNC or target system" },
+	{ RANAP_CauseRadioNetwork_directed_retry,	"directed retry" },
+	{ RANAP_CauseRadioNetwork_radio_connection_with_UE_Lost,
+		"radio connection with UE lost" },
+	{ RANAP_CauseRadioNetwork_rNC_unable_to_establish_all_RFCs,
+		"RNC unable to establish al RFCs" },
+	{ RANAP_CauseRadioNetwork_deciphering_keys_not_available,
+		"de-ciphering keys not available" },
+	{ RANAP_CauseRadioNetwork_dedicated_assistance_data_not_available,
+		"dedicated assistance data not available" },
+	{ RANAP_CauseRadioNetwork_relocation_target_not_allowed,
+		"relocation target not allowed" },
+	{ RANAP_CauseRadioNetwork_location_reporting_congestion,
+		"relocation reporting congestion" },
+	{ RANAP_CauseRadioNetwork_reduce_load_in_serving_cell,
+		"reduce load in serving cell" },
+	{ RANAP_CauseRadioNetwork_no_radio_resources_available_in_target_cell,
+		"no radio resources available in target cell" },
+	{ RANAP_CauseRadioNetwork_gERAN_Iumode_failure,
+		"GERAN Iu-Mode failure" },
+	{ RANAP_CauseRadioNetwork_access_restricted_due_to_shared_networks,
+		"access restricted due to shared networks" },
+	{ RANAP_CauseRadioNetwork_incoming_relocation_not_supported_due_to_PUESBINE_feature,
+		"incoming relocation not supported due to PUESBINE feature" },
+	{ RANAP_CauseRadioNetwork_traffic_load_in_the_target_cell_higher_than_in_the_source_cell,
+		"traffic load in the target cell higher than in the source cell" },
+	{ RANAP_CauseRadioNetwork_mBMS_no_multicast_service_for_this_UE,
+		"MBMS: no multicast service for this UE" },
+	{ RANAP_CauseRadioNetwork_mBMS_unknown_UE_ID,	"MBMS: unknown UE ID" },
+	{ RANAP_CauseRadioNetwork_successful_MBMS_session_start_no_data_bearer_necessary,
+		"successful MBMS session start; no data bearer necessarry" },
+	{ RANAP_CauseRadioNetwork_mBMS_superseded_due_to_NNSF,
+		"MBMS superseded due to NNSF" },
+	{ RANAP_CauseRadioNetwork_mBMS_UE_linking_already_done,
+		"MBMS: UE linking already done" },
+	{ RANAP_CauseRadioNetwork_mBMS_UE_de_linking_failure_no_existing_UE_linking,
+		"MBMS: UE de-linking failure; no existing UE linking" },
+	{ RANAP_CauseRadioNetwork_tMGI_unknown,		"TMGI unknown" },
+	{ 0, NULL }
+};
+
+static const struct value_string ranap_cause_transm_vals[] = {
+	{ RANAP_CauseTransmissionNetwork_signalling_transport_resource_failure,
+		"signalling transport resource failure"	},
+	{ RANAP_CauseTransmissionNetwork_iu_transport_connection_failed_to_establish,
+		"Iu transport connection failed to establish" },
+	{ 0, NULL }
+};
+
+static const struct value_string ranap_cause_nas_vals[] = {
+	{ RANAP_CauseNAS_user_restriction_start_indication,
+		"user restriction; start indication" },
+	{ RANAP_CauseNAS_user_restriction_end_indication,
+		"user restriction; stop indication" },
+	{ RANAP_CauseNAS_normal_release,
+		"normal release" },
+	{ RANAP_CauseNAS_csg_subscription_expiry,
+		"CSG subscription expiry" },
+	{ 0, NULL }
+};
+
+static const struct value_string ranap_cause_prot_vals[] = {
+	{ RANAP_CauseProtocol_transfer_syntax_error,
+		"transfer sytax error" },
+	{ RANAP_CauseProtocol_semantic_error,
+		"semantic error" },
+	{ RANAP_CauseProtocol_message_not_compatible_with_receiver_state,
+		"message not compatible with receiver state" },
+	{ RANAP_CauseProtocol_abstract_syntax_error_reject,
+		"syntax error: reject" },
+	{ RANAP_CauseProtocol_abstract_syntax_error_ignore_and_notify,
+		"syntax error: ignore and notify" },
+	{ RANAP_CauseProtocol_abstract_syntax_error_falsely_constructed_message,
+		"syntax error: falsely constructed message" },
+	{ 0, NULL }
+};
+
+static const struct value_string ranap_cause_misc_vals[] = {
+	{ RANAP_CauseMisc_om_intervention,	"OAM intervention" },
+	{ RANAP_CauseMisc_no_resource_available, "no resource available" },
+	{ RANAP_CauseMisc_unspecified_failure,	"unspecified failure" },
+	{ RANAP_CauseMisc_network_optimisation,	"network optimisation" },
+	{ 0, NULL }
+};
+
+char *ranap_cause_str(const RANAP_Cause_t *cause)
+{
+	static char buf[128];
+
+	switch (cause->present) {
+	case RANAP_Cause_PR_radioNetwork:
+		snprintf(buf, sizeof(buf), "radio(%s)",
+			 get_value_string(ranap_cause_radio_vals,
+					 cause->choice.radioNetwork));
+		break;
+	case RANAP_Cause_PR_transmissionNetwork:
+		snprintf(buf, sizeof(buf), "transmission(%s)",
+			get_value_string(ranap_cause_transm_vals,
+					cause->choice.transmissionNetwork));
+		break;
+	case RANAP_Cause_PR_nAS:
+		snprintf(buf, sizeof(buf), "nas(%s)",
+			get_value_string(ranap_cause_nas_vals,
+					cause->choice.nAS));
+		break;
+	case RANAP_Cause_PR_protocol:
+		snprintf(buf, sizeof(buf), "protocol(%s)",
+			get_value_string(ranap_cause_prot_vals,
+					cause->choice.protocol));
+		break;
+	case RANAP_Cause_PR_misc:
+		snprintf(buf, sizeof(buf), "misc(%s)",
+			get_value_string(ranap_cause_misc_vals,
+					cause->choice.misc));
+		break;
+	case RANAP_Cause_PR_non_Standard:
+		snprintf(buf, sizeof(buf), "non-standard(%u)",
+			cause->choice.non_Standard);
+		break;
+	default:
+		strcpy(buf, "unknown");
+		break;
+	}
+	return buf;
+}
+
+
 static struct msgb *ranap_msgb_alloc(void)
 {
 	return msgb_alloc(1024, "RANAP Tx");
diff --git a/src/ranap_common.h b/src/ranap_common.h
index 9c1945f..78d729e 100644
--- a/src/ranap_common.h
+++ b/src/ranap_common.h
@@ -593,6 +593,8 @@
 
 extern int asn1_xer_print;
 
+char *ranap_cause_str(const RANAP_Cause_t *cause);
+
 struct msgb *ranap_generate_initiating_message(e_RANAP_ProcedureCode procedureCode,
 					  RANAP_Criticality_t criticality,
 					  asn_TYPE_descriptor_t *td, void *sptr);