Error codes
From ss7api.null.ro
Error Codes - GSM MAP
| Name | Code | Optional parameters |
| unknownSubscriber | 1 | unknownSubscriberDiagnostic |
| unknownMSC | 3 | |
| absentsubscriberSM | 6 | absentSubscriberDiagnosticSM, additionalAbsentSubscriberDiagnosticSM |
| unknownEquipment | 7 | |
| roamingNotAllowed | 8 | additionalRoamingNotAllowedCause |
| illegalSubscriber | 9 | |
| bearerServiceNotProvisioned | 10 | |
| teleserviceNotProvisioned | 11 | |
| illegalEquipment | 12 | |
| callBarred | 13 | Mandatory: callBarringCause, unauthorisedMessageOriginator |
| cug-Reject | 15 | cug-RejectCause |
| illegalSS-Operation | 16 | |
| ss-ErrorStatus | 17 | |
| ss-NotAvailable | 18 | |
| ss-SubscriptionViolation | 19 | |
| ss-Incompatibility | 20 | ss-Code, basicService, ss-Status |
| facilityNotSupported | 21 | shapeOfLocationEstimateNotSupported, neededLcsCapabilityNotSupportedInServingNode |
| absentSubscriber | 27 | absentSubscriberReason |
| subscriberBusyForMT-SMS | 31 | gprsConnectionSuspended |
| sm-DeliveryFailure | 32 | Mandatory: sm-EnumeratedDeliveryFailureCause, diagnosticInfo |
| messageWaitingListFull | 33 | |
| pw-RegistrationFailure | 37 | Mandatory: reason value |
| negativePW-Check | 38 | |
| noRoamingNumberAvailable | 39 | |
| tracingBufferFull | 40 | |
| busySubscriber | 45 | ccbs-Possible, ccbs-Busy |
| noSubscriberReply | 46 | |
| unauthorizedRequestingNetwork | 52 |