Table A-171. SCCP user adaptation layer light (sual)
| Field | Field Name | Type |
|---|---|---|
| sual.error_code | Error Code | Unsigned 16-bit integer |
| sual.message_length | Message length | Unsigned 32-bit integer |
| sual.message_type | Message Type | Unsigned 16-bit integer |
| sual.spare_1 | Spare | Unsigned 8-bit integer |
| sual.spare_2 | Spare | Unsigned 16-bit integer |
| sual.subsystem_number | Subsystem number | Unsigned 16-bit integer |
| sual.version | Version | Unsigned 8-bit integer |