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| πεδίο συμπληρωματικών υπηρεσιών | |||
| πεδίο υπηρεσίας (One of four fields of an SCODE that indicates the system service responsible for the error. It consists of a unique number that is assigned to represent the error or warning) | |||
| facility field: 2 phrases in 1 subject |
| Communications | 2 |