community dial office वाक्य
"community dial office" हिंदी में community dial office in a sentenceउदाहरण वाक्य
- In rural areas some smaller switching facilities, such as community dial offices ( CDOs ), were housed in prefabricated metal buildings.
- In the 1960s, Northern Electric developed the SA-1 community dial office as a small Class 5 crossbar switch for local use in rural areas.