3.3 Common Battery Telephone System (CBTS)
{"Image DocumentName": "3.3 Common Battery Telephone System (CBTS)", "Image ImageDescription": "Is today\u2019s telephone system. The CO or the telephone exchange provides power to the telephone set through the two wire local loop. Switching is performed automatically. Battery banks at the central office. 15/12/2012. Bahman R. Alyaei.", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}