| Parent directory/ | - | - |
| retronetcall-9-eng-Group_4_Facsimile_Service_Fax_G4_webm-hd.webm | 237.6 MiB | 2024-08-09 21:42:35 |
| retronetcall-8-eng-A_tour_of_DIVF_our_OCTOI_central_office_using_yate_dahdi-trunkdev_and_more_webm-hd.webm | 571.8 MiB | 2024-01-24 21:17:56 |
| retronetcall-7-eng-Teletext_A_digital_medium_transcending_a_factor_of_10_in_technical_progress_webm-hd.webm | 196.8 MiB | 2023-07-07 10:52:44 |
| retronetcall-6-eng-Teletex_The_brief_abandoned_step_between_Telex_and_Telefax_webm-hd.webm | 313.6 MiB | 2023-06-11 11:45:24 |
| retronetcall-5-eng-E1_The_analog_side_part_1_webm-hd.webm | 359.0 MiB | 2023-05-05 07:50:14 |
| retronetcall-4-eng-Introduction_to_the_X21_interface_webm-hd.webm | 266.8 MiB | 2023-03-04 16:45:32 |
| retronetcall-3-eng-Datex-L_The_German_CSPDN_Circuit_Switched_Public_Data_Network_webm-hd.webm | 355.3 MiB | 2023-02-02 13:56:25 |
| retronetcall-2-eng-ISDN_B-Channel_protocols_X75_V120_V110_T70_webm-hd.webm | 292.4 MiB | 2022-12-25 00:46:45 |
| retronetcall-12-eng-Nokia_TCSM2_a_bank_of_TRAUs_with_E1_interfaces_Part_2_the_working_state_webm-hd.webm | 350.5 MiB | 2025-03-01 08:56:50 |
| retronetcall-11-eng-Classic_PCM30_with_channel-associated_signaling_webm-hd.webm | 210.6 MiB | 2025-03-01 08:32:45 |
| retronetcall-10-eng-Nokia_TCSM2_a_bank_of_TRAUs_with_E1_interfaces_Part_1_initial_examination_of_the_hardware_webm-hd.webm | 1.3 GiB | 2024-08-09 23:48:03 |
| retronetcall-1-eng-OCTOI_project_status_update_Nov_2022_webm-hd.webm | 194.6 MiB | 2022-12-25 00:36:08 |