Content for TS 23.146 Word version: 19.0.0
The SDL specification within this Appendix shall be used as a reference model for implementation. The external behaviour of an implementation shall comply with the present document. However internal behaviour may be implementation dependent.
| State symbol |
Phase / Mode |
| A | Phase A | Transmission / Reception side FA | NONECM / ECM |
| R-A1 | Reception side FA |
| T | Phase B | Transmission side FA |
| T_B1 |
| T_B2 |
| T_B4 |
| T_B5 |
| R | Reception side FA |
| R_B1 |
| R_B3 |
| R_B4 |
| R_B5 |
| T_C1 | Phase C | Transmission side FA | NONECM |
| T_C2 | ECM |
| R_C1 | Reception side FA | NONECM |
| R_C2 | ECM |
| T_D1 | Phase D | Transmission side FA | NONECM |
| T_D2 | ECM |
| T_D2_res1 |
| T_D2_res2 |
| R_D1 | Reception side FA | NONECM |
| R_D2 | ECM |
| R_D1_MPS | NONECM |
| R_D1_EOM |
| R_D1_EOP |
| R_D2_NULL | ECM |
| R_D2_MPS |
| R_D2_EOM |
| R_D2_EOP |
| R_D2_E_NULL |
| R_D2_E_MPS |
| R_D2_E_EOM |
| R_D2_E_EOP |
| E1 | Phase E | Transmission / Reception side FA | NONECM / ECM |
| E2 |
| E3 |
| Name of Timer |
Timer Value |
Refer to |
| T1 | 35 ± 5(sec) | ITU-T T.30 |
| T2 | 6 ± 1(sec) | ITU-T T.30 |
| T4 | 3,0(sec) ± 15% | ITU-T T.30 |
| Twa | 60(sec) | - |
| Fill_insertion_timer | 4,5(sec) | ITU-T T.30 |
| Flag_insertion_timer | 50(sec) | ITU-T T.30 |
| 66s | 66(sec) | ITU-T T.30 |
| 3s | 3(sec) | - |