telephone-switching
Topic | Replies | Views | Activity | |
---|---|---|---|---|
Cutting Over an Electromechanical Telephone Exchange to Electronic Switching | 0 | 202 | 4 April 2023 | |
Green Goo vs. a Telephone Central Office Crossbar Switch | 2 | 204 | 15 January 2023 | |
Debugging an Electromechanical Telephone Crossbar Switch with a Trouble Recorder | 1 | 262 | 10 December 2022 | |
Telephone Switching Living History in Seattle | 0 | 305 | 21 October 2022 |