Indicates if, and on which other services, the indication has been advertised. Each character represents an additional service (e.g. if on Bridge and Autex, field = BA, if only on Autex, field = A)
Valid values:
| 'A' | Autex |
| 'B' | Bridge |
| 'AB' | Autex and Bridge |
| 'BA' | Bridge and Autex |
Used in: