telephone-switching
| Topic | Replies | Views | Activity | |
|---|---|---|---|---|
| Cutting Over an Electromechanical Telephone Exchange to Electronic Switching |
|
0 | 269 | 4 April 2023 |
| Green Goo vs. a Telephone Central Office Crossbar Switch |
|
2 | 261 | 15 January 2023 |
| Debugging an Electromechanical Telephone Crossbar Switch with a Trouble Recorder |
|
1 | 350 | 10 December 2022 |
| Telephone Switching Living History in Seattle |
|
0 | 392 | 21 October 2022 |